diff --git a/src/Bladeburner/Action.tsx b/src/Bladeburner/Action.tsx
index 90a735046..9ec88479a 100644
--- a/src/Bladeburner/Action.tsx
+++ b/src/Bladeburner/Action.tsx
@@ -5,7 +5,7 @@ import { Generic_fromJSON, Generic_toJSON, IReviverValue, Reviver } from "../uti
 import { BladeburnerConstants } from "./data/Constants";
 import { IBladeburner } from "./IBladeburner";
 import { IAction, ISuccessChanceParams } from "./IAction";
-import { IPerson } from "../PersonObjects/IPerson";
+import { Person } from "../PersonObjects/Person";
 
 class StatsMultiplier {
   [key: string]: number;
@@ -153,7 +153,7 @@ export class Action implements IAction {
    * Tests for success. Should be called when an action has completed
    * @param inst {Bladeburner} - Bladeburner instance
    */
-  attempt(inst: IBladeburner, person: IPerson): boolean {
+  attempt(inst: IBladeburner, person: Person): boolean {
     return Math.random() < this.getSuccessChance(inst, person);
   }
 
@@ -162,7 +162,7 @@ export class Action implements IAction {
     return 1;
   }
 
-  getActionTime(inst: IBladeburner, person: IPerson): number {
+  getActionTime(inst: IBladeburner, person: Person): number {
     const difficulty = this.getDifficulty();
     let baseTime = difficulty / BladeburnerConstants.DifficultyToTimeFactor;
     const skillFac = inst.skillMultipliers.actionTime; // Always < 1
@@ -212,7 +212,7 @@ export class Action implements IAction {
     return 1;
   }
 
-  getEstSuccessChance(inst: IBladeburner, person: IPerson): [number, number] {
+  getEstSuccessChance(inst: IBladeburner, person: Person): [number, number] {
     function clamp(x: number): number {
       return Math.max(0, Math.min(x, 1));
     }
@@ -233,7 +233,7 @@ export class Action implements IAction {
    * @params - options:
    *  est (bool): Get success chance estimate instead of real success chance
    */
-  getSuccessChance(inst: IBladeburner, person: IPerson, params: ISuccessChanceParams = { est: false }): number {
+  getSuccessChance(inst: IBladeburner, person: Person, params: ISuccessChanceParams = { est: false }): number {
     if (inst == null) {
       throw new Error("Invalid Bladeburner instance passed into Action.getSuccessChance");
     }
diff --git a/src/Bladeburner/Bladeburner.tsx b/src/Bladeburner/Bladeburner.tsx
index 66e4bda0f..c52b72431 100644
--- a/src/Bladeburner/Bladeburner.tsx
+++ b/src/Bladeburner/Bladeburner.tsx
@@ -16,7 +16,7 @@ import { City } from "./City";
 import { IAction } from "./IAction";
 import { Player } from "../Player";
 import { createTaskTracker, ITaskTracker } from "../PersonObjects/ITaskTracker";
-import { IPerson } from "../PersonObjects/IPerson";
+import { Person } from "../PersonObjects/Person";
 import { Router } from "../ui/GameRoot";
 import { ConsoleHelpText } from "./data/Help";
 import { exceptionAlert } from "../utils/helpers/exceptionAlert";
@@ -995,7 +995,7 @@ export class Bladeburner implements IBladeburner {
    * @param action(Action obj) - Derived action class
    * @param success(bool) - Whether action was successful
    */
-  getActionStats(action: IAction, person: IPerson, success: boolean): ITaskTracker {
+  getActionStats(action: IAction, person: Person, success: boolean): ITaskTracker {
     const difficulty = action.getDifficulty();
 
     /**
@@ -1025,7 +1025,7 @@ export class Bladeburner implements IBladeburner {
     };
   }
 
-  getDiplomacyEffectiveness(person: IPerson): number {
+  getDiplomacyEffectiveness(person: Person): number {
     // Returns a decimal by which the city's chaos level should be multiplied (e.g. 0.98)
     const CharismaLinearFactor = 1e3;
     const CharismaExponentialFactor = 0.045;
@@ -1035,11 +1035,11 @@ export class Bladeburner implements IBladeburner {
     return (100 - charismaEff) / 100;
   }
 
-  getRecruitmentSuccessChance(person: IPerson): number {
+  getRecruitmentSuccessChance(person: Person): number {
     return Math.pow(person.skills.charisma, 0.45) / (this.teamSize - this.sleeveSize + 1);
   }
 
-  getRecruitmentTime(person: IPerson): number {
+  getRecruitmentTime(person: Person): number {
     const effCharisma = person.skills.charisma * this.skillMultipliers.effCha;
     const charismaFactor = Math.pow(effCharisma, 0.81) + effCharisma / 90;
     return Math.max(10, Math.round(BladeburnerConstants.BaseRecruitmentTimeNeeded - charismaFactor));
@@ -1257,7 +1257,7 @@ export class Bladeburner implements IBladeburner {
     }
   }
 
-  completeAction(person: IPerson, actionIdent: IActionIdentifier, isPlayer = true): ITaskTracker {
+  completeAction(person: Person, actionIdent: IActionIdentifier, isPlayer = true): ITaskTracker {
     let retValue = createTaskTracker();
     switch (actionIdent.type) {
       case ActionTypes["Contract"]:
@@ -1610,7 +1610,7 @@ export class Bladeburner implements IBladeburner {
     }
   }
 
-  changeRank(person: IPerson, change: number): void {
+  changeRank(person: Person, change: number): void {
     if (isNaN(change)) {
       throw new Error("NaN passed into Bladeburner.changeRank()");
     }
@@ -2146,7 +2146,7 @@ export class Bladeburner implements IBladeburner {
     }
   }
 
-  getActionTimeNetscriptFn(person: IPerson, type: string, name: string): number | string {
+  getActionTimeNetscriptFn(person: Person, type: string, name: string): number | string {
     const actionId = this.getActionIdFromTypeAndName(type, name);
     if (actionId == null) {
       return "bladeburner.getActionTime";
@@ -2177,7 +2177,7 @@ export class Bladeburner implements IBladeburner {
     }
   }
 
-  getActionEstimatedSuccessChanceNetscriptFn(person: IPerson, type: string, name: string): [number, number] | string {
+  getActionEstimatedSuccessChanceNetscriptFn(person: Person, type: string, name: string): [number, number] | string {
     const actionId = this.getActionIdFromTypeAndName(type, name);
     if (actionId == null) {
       return "bladeburner.getActionEstimatedSuccessChance";
diff --git a/src/Bladeburner/IAction.tsx b/src/Bladeburner/IAction.tsx
index 55202d638..0f396fa32 100644
--- a/src/Bladeburner/IAction.tsx
+++ b/src/Bladeburner/IAction.tsx
@@ -1,5 +1,5 @@
 import { IReviverValue } from "../utils/JSONReviver";
-import { IPerson } from "../PersonObjects/IPerson";
+import { Person } from "../PersonObjects/Person";
 import { IBladeburner } from "./IBladeburner";
 
 interface IStatsMultiplier {
@@ -57,15 +57,15 @@ export interface IAction {
   teamCount: number;
 
   getDifficulty(): number;
-  attempt(inst: IBladeburner, person: IPerson): boolean;
+  attempt(inst: IBladeburner, person: Person): boolean;
   getActionTimePenalty(): number;
-  getActionTime(inst: IBladeburner, person: IPerson): number;
+  getActionTime(inst: IBladeburner, person: Person): number;
   getTeamSuccessBonus(inst: IBladeburner): number;
   getActionTypeSkillSuccessBonus(inst: IBladeburner): number;
   getChaosCompetencePenalty(inst: IBladeburner, params: ISuccessChanceParams): number;
   getChaosDifficultyBonus(inst: IBladeburner): number;
-  getEstSuccessChance(inst: IBladeburner, person: IPerson): [number, number];
-  getSuccessChance(inst: IBladeburner, person: IPerson, params: ISuccessChanceParams): number;
+  getEstSuccessChance(inst: IBladeburner, person: Person): [number, number];
+  getSuccessChance(inst: IBladeburner, person: Person, params: ISuccessChanceParams): number;
   getSuccessesNeededForNextLevel(baseSuccessesPerLevel: number): number;
   setMaxLevel(baseSuccessesPerLevel: number): void;
   toJSON(): IReviverValue;
diff --git a/src/Bladeburner/IBladeburner.ts b/src/Bladeburner/IBladeburner.ts
index 80062b3c2..0f3353ba1 100644
--- a/src/Bladeburner/IBladeburner.ts
+++ b/src/Bladeburner/IBladeburner.ts
@@ -2,7 +2,7 @@ import { IActionIdentifier } from "./IActionIdentifier";
 import { City } from "./City";
 import { Skill } from "./Skill";
 import { IAction } from "./IAction";
-import { IPerson } from "../PersonObjects/IPerson";
+import { Person } from "../PersonObjects/Person";
 import { ITaskTracker } from "../PersonObjects/ITaskTracker";
 import { WorkerScript } from "../Netscript/WorkerScript";
 import { Contract } from "./Contract";
@@ -82,8 +82,8 @@ export interface IBladeburner {
   getGeneralActionNamesNetscriptFn(): string[];
   getSkillNamesNetscriptFn(): string[];
   startActionNetscriptFn(type: string, name: string, workerScript: WorkerScript): boolean;
-  getActionTimeNetscriptFn(person: IPerson, type: string, name: string): number | string;
-  getActionEstimatedSuccessChanceNetscriptFn(person: IPerson, type: string, name: string): [number, number] | string;
+  getActionTimeNetscriptFn(person: Person, type: string, name: string): number | string;
+  getActionEstimatedSuccessChanceNetscriptFn(person: Person, type: string, name: string): [number, number] | string;
   getActionCountRemainingNetscriptFn(type: string, name: string, workerScript: WorkerScript): number;
   getSkillLevelNetscriptFn(skillName: string, workerScript: WorkerScript): number;
   getSkillUpgradeCostNetscriptFn(skillName: string, count: number, workerScript: WorkerScript): number;
@@ -102,23 +102,23 @@ export interface IBladeburner {
   triggerMigration(sourceCityName: string): void;
   triggerPotentialMigration(sourceCityName: string, chance: number): void;
   randomEvent(): void;
-  getDiplomacyEffectiveness(person: IPerson): number;
-  getRecruitmentSuccessChance(person: IPerson): number;
-  getRecruitmentTime(person: IPerson): number;
+  getDiplomacyEffectiveness(person: Person): number;
+  getRecruitmentSuccessChance(person: Person): number;
+  getRecruitmentTime(person: Person): number;
   resetSkillMultipliers(): void;
   updateSkillMultipliers(): void;
   completeOperation(success: boolean): void;
   getActionObject(actionId: IActionIdentifier): IAction | null;
   completeContract(success: boolean, actionIdent: IActionIdentifier): void;
-  completeAction(person: IPerson, actionIdent: IActionIdentifier, isPlayer?: boolean): ITaskTracker;
+  completeAction(person: Person, actionIdent: IActionIdentifier, isPlayer?: boolean): ITaskTracker;
   infiltrateSynthoidCommunities(): void;
-  changeRank(person: IPerson, change: number): void;
+  changeRank(person: Person, change: number): void;
   processAction(seconds: number): void;
   calculateStaminaGainPerSecond(): number;
   calculateMaxStamina(): void;
   create(): void;
   process(): void;
-  getActionStats(action: IAction, person: IPerson, success: boolean): ITaskTracker;
+  getActionStats(action: IAction, person: Person, success: boolean): ITaskTracker;
   sleeveSupport(joining: boolean): void;
   toJSON(): IReviverValue;
 }
diff --git a/src/CotMG/StaneksGift.ts b/src/CotMG/StaneksGift.ts
index 2943eee4c..876f9e41d 100644
--- a/src/CotMG/StaneksGift.ts
+++ b/src/CotMG/StaneksGift.ts
@@ -225,7 +225,7 @@ export class StaneksGift implements IStaneksGift {
       if (!sleeve.hasAugmentation(AugmentationNames.ZOE)) continue;
       sleeve.resetMultipliers();
       sleeve.mults = mergeMultipliers(sleeve.mults, sleeveMults);
-      sleeve.updateStatLevels();
+      sleeve.updateSkillLevels();
     }
   }
 
diff --git a/src/Crime/Crime.ts b/src/Crime/Crime.ts
index 8edf124f8..399518581 100644
--- a/src/Crime/Crime.ts
+++ b/src/Crime/Crime.ts
@@ -1,6 +1,6 @@
 import { CONSTANTS } from "../Constants";
 import { Player } from "../Player";
-import { IPerson } from "../PersonObjects/IPerson";
+import { Person } from "../PersonObjects/Person";
 import { WorkerScript } from "../Netscript/WorkerScript";
 import { CrimeType } from "../utils/WorkType";
 import { CrimeWork } from "../Work/CrimeWork";
@@ -115,7 +115,7 @@ export class Crime {
     return this.time;
   }
 
-  successRate(p: IPerson): number {
+  successRate(p: Person): number {
     let chance: number =
       this.hacking_success_weight * p.skills.hacking +
       this.strength_success_weight * p.skills.strength +
diff --git a/src/Crime/formulas/crime.ts b/src/Crime/formulas/crime.ts
deleted file mode 100644
index 0a896028b..000000000
--- a/src/Crime/formulas/crime.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-import { calculateIntelligenceBonus } from "../../PersonObjects/formulas/intelligence";
-import { CONSTANTS } from "../../Constants";
-
-export interface ICrime {
-  hacking_success_weight: number;
-  strength_success_weight: number;
-  defense_success_weight: number;
-  dexterity_success_weight: number;
-  agility_success_weight: number;
-  charisma_success_weight: number;
-  difficulty: number;
-}
-
-export interface IPerson {
-  hacking: number;
-  strength: number;
-  defense: number;
-  dexterity: number;
-  agility: number;
-  charisma: number;
-  intelligence: number;
-  crime_success_mult: number;
-}
-
-export function calculateCrimeSuccessChance(crime: ICrime, person: IPerson): number {
-  let chance: number =
-    crime.hacking_success_weight * person.hacking +
-    crime.strength_success_weight * person.strength +
-    crime.defense_success_weight * person.defense +
-    crime.dexterity_success_weight * person.dexterity +
-    crime.agility_success_weight * person.agility +
-    crime.charisma_success_weight * person.charisma +
-    CONSTANTS.IntelligenceCrimeWeight * person.intelligence;
-  chance /= CONSTANTS.MaxSkillLevel;
-  chance /= crime.difficulty;
-  chance *= person.crime_success_mult;
-  chance *= calculateIntelligenceBonus(person.intelligence);
-
-  return Math.min(chance, 1);
-}
diff --git a/src/Faction/formulas/donation.ts b/src/Faction/formulas/donation.ts
index 0bcd8c645..14d14bfaf 100644
--- a/src/Faction/formulas/donation.ts
+++ b/src/Faction/formulas/donation.ts
@@ -1,6 +1,6 @@
 import { CONSTANTS } from "../../Constants";
-import { IPerson } from "../../PersonObjects/IPerson";
+import { Person } from "../../PersonObjects/Person";
 
-export function repFromDonation(amt: number, person: IPerson): number {
+export function repFromDonation(amt: number, person: Person): number {
   return (amt / CONSTANTS.DonateMoneyToRepDivisor) * person.mults.faction_rep;
 }
diff --git a/src/Hacking.ts b/src/Hacking.ts
index 91feb8883..d0febe357 100644
--- a/src/Hacking.ts
+++ b/src/Hacking.ts
@@ -1,12 +1,12 @@
 import { BitNodeMultipliers } from "./BitNode/BitNodeMultipliers";
-import { IPerson } from "./PersonObjects/IPerson";
+import { Person } from "./PersonObjects/Person";
 import { calculateIntelligenceBonus } from "./PersonObjects/formulas/intelligence";
 import { Server } from "./Server/Server";
 
 /**
  * Returns the chance the person has to successfully hack a server
  */
-export function calculateHackingChance(server: Server, person: IPerson): number {
+export function calculateHackingChance(server: Server, person: Person): number {
   const hackFactor = 1.75;
   const difficultyMult = (100 - server.hackDifficulty) / 100;
   const skillMult = hackFactor * person.skills.hacking;
@@ -30,7 +30,7 @@ export function calculateHackingChance(server: Server, person: IPerson): number
  * Returns the amount of hacking experience the person will gain upon
  * successfully hacking a server
  */
-export function calculateHackingExpGain(server: Server, person: IPerson): number {
+export function calculateHackingExpGain(server: Server, person: Person): number {
   const baseExpGain = 3;
   const diffFactor = 0.3;
   if (server.baseDifficulty == null) {
@@ -46,7 +46,7 @@ export function calculateHackingExpGain(server: Server, person: IPerson): number
  * Returns the percentage of money that will be stolen from a server if
  * it is successfully hacked (returns the decimal form, not the actual percent value)
  */
-export function calculatePercentMoneyHacked(server: Server, person: IPerson): number {
+export function calculatePercentMoneyHacked(server: Server, person: Person): number {
   // Adjust if needed for balancing. This is the divisor for the final calculation
   const balanceFactor = 240;
 
@@ -67,7 +67,7 @@ export function calculatePercentMoneyHacked(server: Server, person: IPerson): nu
 /**
  * Returns time it takes to complete a hack on a server, in seconds
  */
-export function calculateHackingTime(server: Server, person: IPerson): number {
+export function calculateHackingTime(server: Server, person: Person): number {
   const difficultyMult = server.requiredHackingSkill * server.hackDifficulty;
 
   const baseDiff = 500;
@@ -88,7 +88,7 @@ export function calculateHackingTime(server: Server, person: IPerson): number {
 /**
  * Returns time it takes to complete a grow operation on a server, in seconds
  */
-export function calculateGrowTime(server: Server, person: IPerson): number {
+export function calculateGrowTime(server: Server, person: Person): number {
   const growTimeMultiplier = 3.2; // Relative to hacking time. 16/5 = 3.2
 
   return growTimeMultiplier * calculateHackingTime(server, person);
@@ -97,7 +97,7 @@ export function calculateGrowTime(server: Server, person: IPerson): number {
 /**
  * Returns time it takes to complete a weaken operation on a server, in seconds
  */
-export function calculateWeakenTime(server: Server, person: IPerson): number {
+export function calculateWeakenTime(server: Server, person: Person): number {
   const weakenTimeMultiplier = 4; // Relative to hacking time
 
   return weakenTimeMultiplier * calculateHackingTime(server, person);
diff --git a/src/Netscript/NetscriptHelpers.ts b/src/Netscript/NetscriptHelpers.ts
index 79a2dc2bb..be1cae56c 100644
--- a/src/Netscript/NetscriptHelpers.ts
+++ b/src/Netscript/NetscriptHelpers.ts
@@ -21,7 +21,7 @@ import { CONSTANTS } from "../Constants";
 import { influenceStockThroughServerHack } from "../StockMarket/PlayerInfluencing";
 import { IPort, NetscriptPort } from "../NetscriptPort";
 import { NetscriptPorts } from "../NetscriptWorker";
-import { IPerson } from "../PersonObjects/IPerson";
+import { Person } from "../PersonObjects/Person";
 import { FormulaGang } from "../Gang/formulas/formulas";
 import { GangMember } from "../Gang/GangMember";
 import { GangMemberTask } from "../Gang/GangMemberTask";
@@ -498,7 +498,7 @@ function getValidPort(ctx: NetscriptContext, port: number): IPort {
   return iport;
 }
 
-function player(ctx: NetscriptContext, p: unknown): IPerson {
+function player(ctx: NetscriptContext, p: unknown): Person {
   const fakePlayer = {
     hp: undefined,
     mults: undefined,
@@ -518,7 +518,7 @@ function player(ctx: NetscriptContext, p: unknown): IPerson {
     entropy: undefined,
   };
   if (!roughlyIs(fakePlayer, p)) throw makeRuntimeErrorMsg(ctx, `player should be a Player.`, "TYPE");
-  return p as IPerson;
+  return p as Person;
 }
 
 function server(ctx: NetscriptContext, s: unknown): Server {
diff --git a/src/PersonObjects/IPerson.ts b/src/PersonObjects/IPerson.ts
deleted file mode 100644
index f1611d483..000000000
--- a/src/PersonObjects/IPerson.ts
+++ /dev/null
@@ -1,33 +0,0 @@
-// Interface that represents either the player (PlayerObject) or
-// a Sleeve. Used for functions that need to take in both.
-
-import { IPlayerOwnedAugmentation } from "../Augmentation/PlayerOwnedAugmentation";
-import { HP } from "./HP";
-import { ITaskTracker } from "./ITaskTracker";
-import { Multipliers } from "./Multipliers";
-import { Skills } from "./Skills";
-
-export interface IPerson {
-  hp: HP;
-  skills: Skills;
-  exp: Skills;
-
-  mults: Multipliers;
-
-  augmentations: IPlayerOwnedAugmentation[];
-
-  getIntelligenceBonus(weight: number): number;
-  gainHackingExp(exp: number): void;
-  gainStrengthExp(exp: number): void;
-  gainDefenseExp(exp: number): void;
-  gainDexterityExp(exp: number): void;
-  gainAgilityExp(exp: number): void;
-  gainCharismaExp(exp: number): void;
-  gainIntelligenceExp(exp: number): void;
-  gainStats(retValue: ITaskTracker): void;
-  calculateSkill(exp: number, mult?: number): number;
-  takeDamage(amt: number): boolean;
-  regenerateHp: (amt: number) => void;
-  queryStatFromString: (str: string) => number;
-  whoAmI: () => string;
-}
diff --git a/src/PersonObjects/Person.ts b/src/PersonObjects/Person.ts
index c08cc38dd..794f2ed62 100644
--- a/src/PersonObjects/Person.ts
+++ b/src/PersonObjects/Person.ts
@@ -1,18 +1,15 @@
-import * as generalMethods from "./Player/PlayerObjectGeneralMethods";
-import { Augmentation } from "../Augmentation/Augmentation";
+import * as personMethods from "./PersonMethods";
 import { IPlayerOwnedAugmentation } from "../Augmentation/PlayerOwnedAugmentation";
-import { BitNodeMultipliers } from "../BitNode/BitNodeMultipliers";
 import { CityName } from "../Locations/data/CityNames";
-import { CONSTANTS } from "../Constants";
 import { calculateSkill } from "./formulas/skill";
 import { calculateIntelligenceBonus } from "./formulas/intelligence";
-import { IPerson } from "./IPerson";
-import { defaultMultipliers, mergeAugmentation } from "./Multipliers";
+import { defaultMultipliers } from "./Multipliers";
 import { Skills } from "./Skills";
 import { HP } from "./HP";
+import { IReviverValue } from "../utils/JSONReviver";
 
 // Base class representing a person-like object
-export abstract class Person implements IPerson {
+export abstract class Person {
   hp: HP = { current: 10, max: 10 };
   skills: Skills = {
     hacking: 1,
@@ -45,126 +42,31 @@ export abstract class Person implements IPerson {
    */
   city: CityName = CityName.Sector12;
 
-  gainHackingExp = generalMethods.gainHackingExp;
-  gainStrengthExp = generalMethods.gainStrengthExp;
-  gainDefenseExp = generalMethods.gainDefenseExp;
-  gainDexterityExp = generalMethods.gainDexterityExp;
-  gainAgilityExp = generalMethods.gainAgilityExp;
-  gainCharismaExp = generalMethods.gainCharismaExp;
-  gainIntelligenceExp = generalMethods.gainIntelligenceExp;
-  gainStats = generalMethods.gainStats;
-  calculateSkill = generalMethods.calculateSkill;
-  regenerateHp = generalMethods.regenerateHp;
-  queryStatFromString = generalMethods.queryStatFromString;
-
-  /**
-   * Updates this object's multipliers for the given augmentation
-   */
-  applyAugmentation(aug: Augmentation): void {
-    this.mults = mergeAugmentation(this.mults, aug.mults);
-  }
-
-  /**
-   * Given an experience amount and stat multiplier, calculates the
-   * stat level. Stat-agnostic (same formula for every stat)
-   */
-  calculateStat(exp: number, mult = 1): number {
-    return calculateSkill(exp, mult);
-  }
-
-  /**
-   * Calculate and return the amount of faction reputation earned per cycle
-   * when doing Field Work for a faction
-   */
-  getFactionFieldWorkRepGain(): number {
-    const t =
-      (0.9 *
-        (this.skills.hacking / CONSTANTS.MaxSkillLevel +
-          this.skills.strength / CONSTANTS.MaxSkillLevel +
-          this.skills.defense / CONSTANTS.MaxSkillLevel +
-          this.skills.dexterity / CONSTANTS.MaxSkillLevel +
-          this.skills.agility / CONSTANTS.MaxSkillLevel +
-          this.skills.charisma / CONSTANTS.MaxSkillLevel)) /
-      5.5;
-    return t * this.mults.faction_rep;
-  }
-
-  /**
-   * Calculate and return the amount of faction reputation earned per cycle
-   * when doing Hacking Work for a faction
-   */
-  getFactionHackingWorkRepGain(): number {
-    return (this.skills.hacking / CONSTANTS.MaxSkillLevel) * this.mults.faction_rep;
-  }
-
-  /**
-   * Calculate and return the amount of faction reputation earned per cycle
-   * when doing Security Work for a faction
-   */
-  getFactionSecurityWorkRepGain(): number {
-    const t =
-      (0.9 *
-        (this.skills.hacking / CONSTANTS.MaxSkillLevel +
-          this.skills.strength / CONSTANTS.MaxSkillLevel +
-          this.skills.defense / CONSTANTS.MaxSkillLevel +
-          this.skills.dexterity / CONSTANTS.MaxSkillLevel +
-          this.skills.agility / CONSTANTS.MaxSkillLevel)) /
-      4.5;
-    return t * this.mults.faction_rep;
-  }
+  gainHackingExp = personMethods.gainHackingExp;
+  gainStrengthExp = personMethods.gainStrengthExp;
+  gainDefenseExp = personMethods.gainDefenseExp;
+  gainDexterityExp = personMethods.gainDexterityExp;
+  gainAgilityExp = personMethods.gainAgilityExp;
+  gainCharismaExp = personMethods.gainCharismaExp;
+  gainIntelligenceExp = personMethods.gainIntelligenceExp;
+  gainStats = personMethods.gainStats;
+  regenerateHp = personMethods.regenerateHp;
+  queryStatFromString = personMethods.queryStatFromString;
+  updateSkillLevels = personMethods.updateSkillLevels;
+  calculateSkill = calculateSkill; //Class version is equal to imported version
 
   /**
    * Reset all multipliers to 1
    */
-  resetMultipliers(): void {
+  resetMultipliers() {
     this.mults = defaultMultipliers();
   }
 
-  /**
-   * Update all stat levels
-   */
-  updateStatLevels(): void {
-    this.skills.hacking = Math.max(
-      1,
-      Math.floor(this.calculateStat(this.exp.hacking, this.mults.hacking * BitNodeMultipliers.HackingLevelMultiplier)),
-    );
-    this.skills.strength = Math.max(
-      1,
-      Math.floor(
-        this.calculateStat(this.exp.strength, this.mults.strength * BitNodeMultipliers.StrengthLevelMultiplier),
-      ),
-    );
-    this.skills.defense = Math.max(
-      1,
-      Math.floor(this.calculateStat(this.exp.defense, this.mults.defense * BitNodeMultipliers.DefenseLevelMultiplier)),
-    );
-    this.skills.dexterity = Math.max(
-      1,
-      Math.floor(
-        this.calculateStat(this.exp.dexterity, this.mults.dexterity * BitNodeMultipliers.DexterityLevelMultiplier),
-      ),
-    );
-    this.skills.agility = Math.max(
-      1,
-      Math.floor(this.calculateStat(this.exp.agility, this.mults.agility * BitNodeMultipliers.AgilityLevelMultiplier)),
-    );
-    this.skills.charisma = Math.max(
-      1,
-      Math.floor(
-        this.calculateStat(this.exp.charisma, this.mults.charisma * BitNodeMultipliers.CharismaLevelMultiplier),
-      ),
-    );
-
-    const ratio: number = this.hp.current / this.hp.max;
-    this.hp.max = Math.floor(10 + this.skills.defense / 10);
-    this.hp.current = Math.round(this.hp.max * ratio);
-  }
-
   getIntelligenceBonus(weight: number): number {
     return calculateIntelligenceBonus(this.skills.intelligence, weight);
   }
 
   abstract takeDamage(amt: number): boolean;
-
   abstract whoAmI(): string;
+  abstract toJSON(): IReviverValue;
 }
diff --git a/src/PersonObjects/PersonMethods.ts b/src/PersonObjects/PersonMethods.ts
new file mode 100644
index 000000000..b3657c438
--- /dev/null
+++ b/src/PersonObjects/PersonMethods.ts
@@ -0,0 +1,199 @@
+import { Person } from "./Person";
+import { calculateSkill } from "./formulas/skill";
+import { BitNodeMultipliers } from "../BitNode/BitNodeMultipliers";
+import { Player } from "../Player";
+import { ITaskTracker } from "./ITaskTracker";
+
+export function gainHackingExp(this: Person, exp: number): void {
+  if (isNaN(exp)) {
+    console.error("ERR: NaN passed into Player.gainHackingExp()");
+    return;
+  }
+  this.exp.hacking += exp;
+  if (this.exp.hacking < 0) {
+    this.exp.hacking = 0;
+  }
+
+  this.skills.hacking = calculateSkill(
+    this.exp.hacking,
+    this.mults.hacking * BitNodeMultipliers.HackingLevelMultiplier,
+  );
+}
+
+export function gainStrengthExp(this: Person, exp: number): void {
+  if (isNaN(exp)) {
+    console.error("ERR: NaN passed into Player.gainStrengthExp()");
+    return;
+  }
+  this.exp.strength += exp;
+  if (this.exp.strength < 0) {
+    this.exp.strength = 0;
+  }
+
+  this.skills.strength = calculateSkill(
+    this.exp.strength,
+    this.mults.strength * BitNodeMultipliers.StrengthLevelMultiplier,
+  );
+}
+
+export function gainDefenseExp(this: Person, exp: number): void {
+  if (isNaN(exp)) {
+    console.error("ERR: NaN passed into player.gainDefenseExp()");
+    return;
+  }
+  this.exp.defense += exp;
+  if (this.exp.defense < 0) {
+    this.exp.defense = 0;
+  }
+
+  this.skills.defense = calculateSkill(
+    this.exp.defense,
+    this.mults.defense * BitNodeMultipliers.DefenseLevelMultiplier,
+  );
+  const ratio = this.hp.current / this.hp.max;
+  this.hp.max = Math.floor(10 + this.skills.defense / 10);
+  this.hp.current = Math.round(this.hp.max * ratio);
+}
+
+export function gainDexterityExp(this: Person, exp: number): void {
+  if (isNaN(exp)) {
+    console.error("ERR: NaN passed into Player.gainDexterityExp()");
+    return;
+  }
+  this.exp.dexterity += exp;
+  if (this.exp.dexterity < 0) {
+    this.exp.dexterity = 0;
+  }
+
+  this.skills.dexterity = calculateSkill(
+    this.exp.dexterity,
+    this.mults.dexterity * BitNodeMultipliers.DexterityLevelMultiplier,
+  );
+}
+
+export function gainAgilityExp(this: Person, exp: number): void {
+  if (isNaN(exp)) {
+    console.error("ERR: NaN passed into Player.gainAgilityExp()");
+    return;
+  }
+  this.exp.agility += exp;
+  if (this.exp.agility < 0) {
+    this.exp.agility = 0;
+  }
+
+  this.skills.agility = calculateSkill(
+    this.exp.agility,
+    this.mults.agility * BitNodeMultipliers.AgilityLevelMultiplier,
+  );
+}
+
+export function gainCharismaExp(this: Person, exp: number): void {
+  if (isNaN(exp)) {
+    console.error("ERR: NaN passed into Player.gainCharismaExp()");
+    return;
+  }
+  this.exp.charisma += exp;
+  if (this.exp.charisma < 0) {
+    this.exp.charisma = 0;
+  }
+
+  this.skills.charisma = calculateSkill(
+    this.exp.charisma,
+    this.mults.charisma * BitNodeMultipliers.CharismaLevelMultiplier,
+  );
+}
+
+export function gainIntelligenceExp(this: Person, exp: number): void {
+  if (isNaN(exp)) {
+    console.error("ERROR: NaN passed into Player.gainIntelligenceExp()");
+    return;
+  }
+  if (Player.sourceFileLvl(5) > 0 || this.skills.intelligence > 0 || Player.bitNodeN === 5) {
+    this.exp.intelligence += exp;
+    this.skills.intelligence = Math.floor(this.calculateSkill(this.exp.intelligence, 1));
+  }
+}
+export function gainStats(this: Person, retValue: ITaskTracker): void {
+  this.gainHackingExp(retValue.hack * this.mults.hacking_exp);
+  this.gainStrengthExp(retValue.str * this.mults.strength_exp);
+  this.gainDefenseExp(retValue.def * this.mults.defense_exp);
+  this.gainDexterityExp(retValue.dex * this.mults.dexterity_exp);
+  this.gainAgilityExp(retValue.agi * this.mults.agility_exp);
+  this.gainCharismaExp(retValue.cha * this.mults.charisma_exp);
+  this.gainIntelligenceExp(retValue.int);
+}
+
+//Given a string expression like "str" or "strength", returns the given stat
+export function queryStatFromString(this: Person, str: string): number {
+  const tempStr = str.toLowerCase();
+  if (tempStr.includes("hack")) {
+    return this.skills.hacking;
+  }
+  if (tempStr.includes("str")) {
+    return this.skills.strength;
+  }
+  if (tempStr.includes("def")) {
+    return this.skills.defense;
+  }
+  if (tempStr.includes("dex")) {
+    return this.skills.dexterity;
+  }
+  if (tempStr.includes("agi")) {
+    return this.skills.agility;
+  }
+  if (tempStr.includes("cha")) {
+    return this.skills.charisma;
+  }
+  if (tempStr.includes("int")) {
+    return this.skills.intelligence;
+  }
+  return 0;
+}
+
+export function regenerateHp(this: Person, amt: number): void {
+  if (typeof amt !== "number") {
+    console.warn(`Player.regenerateHp() called without a numeric argument: ${amt}`);
+    return;
+  }
+  this.hp.current += amt;
+  if (this.hp.current > this.hp.max) {
+    this.hp.current = this.hp.max;
+  }
+}
+
+export function updateSkillLevels(this: Person): void {
+  this.skills.hacking = Math.max(
+    1,
+    Math.floor(this.calculateSkill(this.exp.hacking, this.mults.hacking * BitNodeMultipliers.HackingLevelMultiplier)),
+  );
+  this.skills.strength = Math.max(
+    1,
+    Math.floor(
+      this.calculateSkill(this.exp.strength, this.mults.strength * BitNodeMultipliers.StrengthLevelMultiplier),
+    ),
+  );
+  this.skills.defense = Math.max(
+    1,
+    Math.floor(this.calculateSkill(this.exp.defense, this.mults.defense * BitNodeMultipliers.DefenseLevelMultiplier)),
+  );
+  this.skills.dexterity = Math.max(
+    1,
+    Math.floor(
+      this.calculateSkill(this.exp.dexterity, this.mults.dexterity * BitNodeMultipliers.DexterityLevelMultiplier),
+    ),
+  );
+  this.skills.agility = Math.max(
+    1,
+    Math.floor(this.calculateSkill(this.exp.agility, this.mults.agility * BitNodeMultipliers.AgilityLevelMultiplier)),
+  );
+  this.skills.charisma = Math.max(
+    1,
+    Math.floor(
+      this.calculateSkill(this.exp.charisma, this.mults.charisma * BitNodeMultipliers.CharismaLevelMultiplier),
+    ),
+  );
+
+  const ratio: number = this.hp.current / this.hp.max;
+  this.hp.max = Math.floor(10 + this.skills.defense / 10);
+  this.hp.current = Math.round(this.hp.max * ratio);
+}
diff --git a/src/PersonObjects/Player/PlayerObject.ts b/src/PersonObjects/Player/PlayerObject.ts
index af67f569a..e083fb46a 100644
--- a/src/PersonObjects/Player/PlayerObject.ts
+++ b/src/PersonObjects/Player/PlayerObject.ts
@@ -11,7 +11,6 @@ import { Sleeve } from "../Sleeve/Sleeve";
 import { IPlayerOwnedSourceFile } from "../../SourceFile/PlayerOwnedSourceFile";
 import { Exploit } from "../../Exploits/Exploit";
 
-import { IPerson } from "../IPerson";
 import { LocationName } from "../../Locations/data/LocationNames";
 import { IPlayerOwnedAugmentation } from "../../Augmentation/PlayerOwnedAugmentation";
 import { ICorporation } from "../../Corporation/ICorporation";
@@ -20,7 +19,6 @@ import { IBladeburner } from "../../Bladeburner/IBladeburner";
 import { HacknetNode } from "../../Hacknet/HacknetNode";
 
 import { HashManager } from "../../Hacknet/HashManager";
-import { CityName } from "../../Locations/data/CityNames";
 
 import { MoneySourceTracker } from "../../utils/MoneySourceTracker";
 import { Reviver, Generic_toJSON, Generic_fromJSON, IReviverValue } from "../../utils/JSONReviver";
@@ -29,15 +27,11 @@ import { cyrb53 } from "../../utils/StringHelperFunctions";
 import { getRandomInt } from "../../utils/helpers/getRandomInt";
 import { CONSTANTS } from "../../Constants";
 import { Work } from "src/Work/Work";
-import { defaultMultipliers } from "../Multipliers";
-import { HP } from "../HP";
-import { Skills } from "../Skills";
+import { Person } from "../Person";
 
-export class PlayerObject implements IPerson {
-  // Class members
-  augmentations: IPlayerOwnedAugmentation[] = [];
+export class PlayerObject extends Person {
+  // Player-specific properties
   bitNodeN = 1; //current bitnode
-  city = CityName.Sector12;
   corporation: ICorporation | null = null;
   gang: IGang | null = null;
   bladeburner: IBladeburner | null = null;
@@ -73,34 +67,12 @@ export class PlayerObject implements IPerson {
   lastSave = 0;
   totalPlaytime = 0;
 
-  hp: HP = { current: 10, max: 10 };
-  skills: Skills = {
-    hacking: 1,
-    strength: 1,
-    defense: 1,
-    dexterity: 1,
-    agility: 1,
-    charisma: 1,
-    intelligence: 0,
-  };
-  exp: Skills = {
-    hacking: 0,
-    strength: 0,
-    defense: 0,
-    dexterity: 0,
-    agility: 0,
-    charisma: 0,
-    intelligence: 0,
-  };
-
-  mults = defaultMultipliers();
-
   currentWork: Work | null = null;
   focus = false;
 
   entropy = 0;
 
-  // Methods
+  // Player-specific methods
   init = generalMethods.init;
   startWork = workMethods.startWork;
   processWork = workMethods.processWork;
@@ -124,14 +96,6 @@ export class PlayerObject implements IPerson {
   canAccessGang = gangMethods.canAccessGang;
   canAccessGrafting = generalMethods.canAccessGrafting;
   canAfford = generalMethods.canAfford;
-  gainHackingExp = generalMethods.gainHackingExp;
-  gainStrengthExp = generalMethods.gainStrengthExp;
-  gainDefenseExp = generalMethods.gainDefenseExp;
-  gainDexterityExp = generalMethods.gainDexterityExp;
-  gainAgilityExp = generalMethods.gainAgilityExp;
-  gainCharismaExp = generalMethods.gainCharismaExp;
-  gainIntelligenceExp = generalMethods.gainIntelligenceExp;
-  gainStats = generalMethods.gainStats;
   gainMoney = generalMethods.gainMoney;
   getCurrentServer = serverMethods.getCurrentServer;
   getGangFaction = gangMethods.getGangFaction;
@@ -153,7 +117,6 @@ export class PlayerObject implements IPerson {
   loseMoney = generalMethods.loseMoney;
   reapplyAllAugmentations = generalMethods.reapplyAllAugmentations;
   reapplyAllSourceFiles = generalMethods.reapplyAllSourceFiles;
-  regenerateHp = generalMethods.regenerateHp;
   recordMoneySource = generalMethods.recordMoneySource;
   setMoney = generalMethods.setMoney;
   startBladeburner = bladeburnerMethods.startBladeburner;
@@ -164,21 +127,16 @@ export class PlayerObject implements IPerson {
   travel = generalMethods.travel;
   giveExploit = generalMethods.giveExploit;
   giveAchievement = generalMethods.giveAchievement;
-  queryStatFromString = generalMethods.queryStatFromString;
-  getIntelligenceBonus = generalMethods.getIntelligenceBonus;
   getCasinoWinnings = generalMethods.getCasinoWinnings;
   quitJob = generalMethods.quitJob;
   hasJob = generalMethods.hasJob;
   createHacknetServer = serverMethods.createHacknetServer;
   queueAugmentation = generalMethods.queueAugmentation;
   receiveInvite = generalMethods.receiveInvite;
-  updateSkillLevels = generalMethods.updateSkillLevels;
   gainCodingContractReward = generalMethods.gainCodingContractReward;
   stopFocusing = generalMethods.stopFocusing;
-  resetMultipliers = generalMethods.resetMultipliers;
   prestigeAugmentation = generalMethods.prestigeAugmentation;
   prestigeSourceFile = generalMethods.prestigeSourceFile;
-  calculateSkill = generalMethods.calculateSkill;
   calculateSkillProgress = generalMethods.calculateSkillProgress;
   hospitalize = generalMethods.hospitalize;
   checkForFactionInvitations = generalMethods.checkForFactionInvitations;
@@ -189,6 +147,7 @@ export class PlayerObject implements IPerson {
   focusPenalty = generalMethods.focusPenalty;
 
   constructor() {
+    super();
     // Let's get a hash of some semi-random stuff so we have something unique.
     this.identifier = cyrb53(
       "I-" +
@@ -219,4 +178,4 @@ export class PlayerObject implements IPerson {
   }
 }
 
-Reviver.constructors.PlayerObject = PlayerObject;
+Reviver.constructors.PlayerObject = PlayerObject;
\ No newline at end of file
diff --git a/src/PersonObjects/Player/PlayerObjectGeneralMethods.ts b/src/PersonObjects/Player/PlayerObjectGeneralMethods.ts
index e44277f8f..f27c3bd50 100644
--- a/src/PersonObjects/Player/PlayerObjectGeneralMethods.ts
+++ b/src/PersonObjects/Player/PlayerObjectGeneralMethods.ts
@@ -24,11 +24,9 @@ import { LocationName } from "../../Locations/data/LocationNames";
 import { Sleeve } from "../Sleeve/Sleeve";
 import { isSleeveCompanyWork } from "../Sleeve/Work/SleeveCompanyWork";
 import {
-  calculateSkill as calculateSkillF,
   calculateSkillProgress as calculateSkillProgressF,
   ISkillProgress,
 } from "../formulas/skill";
-import { calculateIntelligenceBonus } from "../formulas/intelligence";
 import { GetServer, AddToAllServers, createUniqueRandomIp } from "../../Server/AllServers";
 import { Server } from "../../Server/Server";
 import { safetlyCreateUniqueServer } from "../../Server/ServerHelpers";
@@ -47,12 +45,8 @@ import { dialogBoxCreate } from "../../ui/React/DialogBox";
 import { SnackbarEvents, ToastVariant } from "../../ui/React/Snackbar";
 import { achievements } from "../../Achievements/Achievements";
 import { FactionNames } from "../../Faction/data/FactionNames";
-import { ITaskTracker } from "../ITaskTracker";
-import { IPerson } from "../IPerson";
-import { Player } from "../../Player";
 
 import { isCompanyWork } from "../../Work/CompanyWork";
-import { defaultMultipliers } from "../Multipliers";
 import { serverMetadata } from "../../Server/data/servers";
 
 export function init(this: PlayerObject): void {
@@ -186,63 +180,11 @@ export function receiveInvite(this: PlayerObject, factionName: string): void {
   this.factionInvitations.push(factionName);
 }
 
-//Calculates skill level based on experience. The same formula will be used for every skill
-export function calculateSkill(this: IPerson, exp: number, mult = 1): number {
-  return calculateSkillF(exp, mult);
-}
-
 //Calculates skill level progress based on experience. The same formula will be used for every skill
 export function calculateSkillProgress(this: PlayerObject, exp: number, mult = 1): ISkillProgress {
   return calculateSkillProgressF(exp, mult);
 }
 
-export function updateSkillLevels(this: PlayerObject): void {
-  this.skills.hacking = Math.max(
-    1,
-    Math.floor(this.calculateSkill(this.exp.hacking, this.mults.hacking * BitNodeMultipliers.HackingLevelMultiplier)),
-  );
-  this.skills.strength = Math.max(
-    1,
-    Math.floor(
-      this.calculateSkill(this.exp.strength, this.mults.strength * BitNodeMultipliers.StrengthLevelMultiplier),
-    ),
-  );
-  this.skills.defense = Math.max(
-    1,
-    Math.floor(this.calculateSkill(this.exp.defense, this.mults.defense * BitNodeMultipliers.DefenseLevelMultiplier)),
-  );
-  this.skills.dexterity = Math.max(
-    1,
-    Math.floor(
-      this.calculateSkill(this.exp.dexterity, this.mults.dexterity * BitNodeMultipliers.DexterityLevelMultiplier),
-    ),
-  );
-  this.skills.agility = Math.max(
-    1,
-    Math.floor(this.calculateSkill(this.exp.agility, this.mults.agility * BitNodeMultipliers.AgilityLevelMultiplier)),
-  );
-  this.skills.charisma = Math.max(
-    1,
-    Math.floor(
-      this.calculateSkill(this.exp.charisma, this.mults.charisma * BitNodeMultipliers.CharismaLevelMultiplier),
-    ),
-  );
-
-  if (this.skills.intelligence > 0) {
-    this.skills.intelligence = Math.floor(this.calculateSkill(this.exp.intelligence));
-  } else {
-    this.skills.intelligence = 0;
-  }
-
-  const ratio = this.hp.current / this.hp.max;
-  this.hp.max = Math.floor(10 + this.skills.defense / 10);
-  this.hp.current = Math.round(this.hp.max * ratio);
-}
-
-export function resetMultipliers(this: PlayerObject): void {
-  this.mults = defaultMultipliers();
-}
-
 export function hasProgram(this: PlayerObject, programName: string): boolean {
   const home = this.getHomeComputer();
   if (home == null) {
@@ -306,153 +248,6 @@ export function recordMoneySource(this: PlayerObject, amt: number, source: strin
   this.moneySourceB.record(amt, source);
 }
 
-export function gainHackingExp(this: IPerson, exp: number): void {
-  if (isNaN(exp)) {
-    console.error("ERR: NaN passed into Player.gainHackingExp()");
-    return;
-  }
-  this.exp.hacking += exp;
-  if (this.exp.hacking < 0) {
-    this.exp.hacking = 0;
-  }
-
-  this.skills.hacking = calculateSkillF(
-    this.exp.hacking,
-    this.mults.hacking * BitNodeMultipliers.HackingLevelMultiplier,
-  );
-}
-
-export function gainStrengthExp(this: IPerson, exp: number): void {
-  if (isNaN(exp)) {
-    console.error("ERR: NaN passed into Player.gainStrengthExp()");
-    return;
-  }
-  this.exp.strength += exp;
-  if (this.exp.strength < 0) {
-    this.exp.strength = 0;
-  }
-
-  this.skills.strength = calculateSkillF(
-    this.exp.strength,
-    this.mults.strength * BitNodeMultipliers.StrengthLevelMultiplier,
-  );
-}
-
-export function gainDefenseExp(this: IPerson, exp: number): void {
-  if (isNaN(exp)) {
-    console.error("ERR: NaN passed into player.gainDefenseExp()");
-    return;
-  }
-  this.exp.defense += exp;
-  if (this.exp.defense < 0) {
-    this.exp.defense = 0;
-  }
-
-  this.skills.defense = calculateSkillF(
-    this.exp.defense,
-    this.mults.defense * BitNodeMultipliers.DefenseLevelMultiplier,
-  );
-  const ratio = this.hp.current / this.hp.max;
-  this.hp.max = Math.floor(10 + this.skills.defense / 10);
-  this.hp.current = Math.round(this.hp.max * ratio);
-}
-
-export function gainDexterityExp(this: IPerson, exp: number): void {
-  if (isNaN(exp)) {
-    console.error("ERR: NaN passed into Player.gainDexterityExp()");
-    return;
-  }
-  this.exp.dexterity += exp;
-  if (this.exp.dexterity < 0) {
-    this.exp.dexterity = 0;
-  }
-
-  this.skills.dexterity = calculateSkillF(
-    this.exp.dexterity,
-    this.mults.dexterity * BitNodeMultipliers.DexterityLevelMultiplier,
-  );
-}
-
-export function gainAgilityExp(this: IPerson, exp: number): void {
-  if (isNaN(exp)) {
-    console.error("ERR: NaN passed into Player.gainAgilityExp()");
-    return;
-  }
-  this.exp.agility += exp;
-  if (this.exp.agility < 0) {
-    this.exp.agility = 0;
-  }
-
-  this.skills.agility = calculateSkillF(
-    this.exp.agility,
-    this.mults.agility * BitNodeMultipliers.AgilityLevelMultiplier,
-  );
-}
-
-export function gainCharismaExp(this: IPerson, exp: number): void {
-  if (isNaN(exp)) {
-    console.error("ERR: NaN passed into Player.gainCharismaExp()");
-    return;
-  }
-  this.exp.charisma += exp;
-  if (this.exp.charisma < 0) {
-    this.exp.charisma = 0;
-  }
-
-  this.skills.charisma = calculateSkillF(
-    this.exp.charisma,
-    this.mults.charisma * BitNodeMultipliers.CharismaLevelMultiplier,
-  );
-}
-
-export function gainIntelligenceExp(this: IPerson, exp: number): void {
-  if (isNaN(exp)) {
-    console.error("ERROR: NaN passed into Player.gainIntelligenceExp()");
-    return;
-  }
-  if (Player.sourceFileLvl(5) > 0 || this.skills.intelligence > 0 || Player.bitNodeN === 5) {
-    this.exp.intelligence += exp;
-    this.skills.intelligence = Math.floor(this.calculateSkill(this.exp.intelligence, 1));
-  }
-}
-
-export function gainStats(this: IPerson, retValue: ITaskTracker): void {
-  this.gainHackingExp(retValue.hack * this.mults.hacking_exp);
-  this.gainStrengthExp(retValue.str * this.mults.strength_exp);
-  this.gainDefenseExp(retValue.def * this.mults.defense_exp);
-  this.gainDexterityExp(retValue.dex * this.mults.dexterity_exp);
-  this.gainAgilityExp(retValue.agi * this.mults.agility_exp);
-  this.gainCharismaExp(retValue.cha * this.mults.charisma_exp);
-  this.gainIntelligenceExp(retValue.int);
-}
-
-//Given a string expression like "str" or "strength", returns the given stat
-export function queryStatFromString(this: PlayerObject, str: string): number {
-  const tempStr = str.toLowerCase();
-  if (tempStr.includes("hack")) {
-    return this.skills.hacking;
-  }
-  if (tempStr.includes("str")) {
-    return this.skills.strength;
-  }
-  if (tempStr.includes("def")) {
-    return this.skills.defense;
-  }
-  if (tempStr.includes("dex")) {
-    return this.skills.dexterity;
-  }
-  if (tempStr.includes("agi")) {
-    return this.skills.agility;
-  }
-  if (tempStr.includes("cha")) {
-    return this.skills.charisma;
-  }
-  if (tempStr.includes("int")) {
-    return this.skills.intelligence;
-  }
-  return 0;
-}
-
 export function startFocusing(this: PlayerObject): void {
   this.focus = true;
 }
@@ -477,17 +272,6 @@ export function takeDamage(this: PlayerObject, amt: number): boolean {
   }
 }
 
-export function regenerateHp(this: IPerson, amt: number): void {
-  if (typeof amt !== "number") {
-    console.warn(`Player.regenerateHp() called without a numeric argument: ${amt}`);
-    return;
-  }
-  this.hp.current += amt;
-  if (this.hp.current > this.hp.max) {
-    this.hp.current = this.hp.max;
-  }
-}
-
 export function hospitalize(this: PlayerObject): number {
   const cost = getHospitalizationCost();
   SnackbarEvents.emit(`You've been Hospitalized for ${numeralWrapper.formatMoney(cost)}`, ToastVariant.WARNING, 2000);
@@ -1441,10 +1225,6 @@ export function giveAchievement(this: PlayerObject, achievementId: string): void
   }
 }
 
-export function getIntelligenceBonus(this: PlayerObject, weight: number): number {
-  return calculateIntelligenceBonus(this.skills.intelligence, weight);
-}
-
 export function getCasinoWinnings(this: PlayerObject): number {
   return this.moneySourceA.casino;
 }
diff --git a/src/PersonObjects/Sleeve/Sleeve.ts b/src/PersonObjects/Sleeve/Sleeve.ts
index ff0f92f40..2b0d5c4a5 100644
--- a/src/PersonObjects/Sleeve/Sleeve.ts
+++ b/src/PersonObjects/Sleeve/Sleeve.ts
@@ -80,6 +80,7 @@ export class Sleeve extends Person {
     this.shockRecovery();
   }
 
+  applyAugmentation = sleeveMethods.applyAugmentation;
   findPurchasableAugs = sleeveMethods.findPurchasableAugs;
 
   shockBonus(): number {
@@ -147,7 +148,7 @@ export class Sleeve extends Person {
     this.exp.charisma = 0;
     this.applyAugmentation(aug);
     this.augmentations.push({ name: aug.name, level: 1 });
-    this.updateStatLevels();
+    this.updateSkillLevels();
   }
 
   /**
@@ -161,7 +162,7 @@ export class Sleeve extends Person {
     this.exp.dexterity = 0;
     this.exp.agility = 0;
     this.exp.charisma = 0;
-    this.updateStatLevels();
+    this.updateSkillLevels();
     this.hp.current = this.hp.max;
 
     // Reset task-related stuff
diff --git a/src/PersonObjects/Sleeve/SleeveMethods.ts b/src/PersonObjects/Sleeve/SleeveMethods.ts
index 08d762d29..0607ea85f 100644
--- a/src/PersonObjects/Sleeve/SleeveMethods.ts
+++ b/src/PersonObjects/Sleeve/SleeveMethods.ts
@@ -6,10 +6,17 @@ import { Player } from "../../Player";
 import { Augmentation } from "../../Augmentation/Augmentation";
 import { StaticAugmentations } from "../../Augmentation/StaticAugmentations";
 import { Factions } from "../../Faction/Factions";
-import { Multipliers } from "../Multipliers";
+import { mergeMultipliers, Multipliers } from "../Multipliers";
 import { AugmentationNames } from "../../Augmentation/data/AugmentationNames";
 import { getFactionAugmentationsFiltered } from "../../Faction/FactionHelpers";
 
+/**
+ * Updates this object's multipliers for the given augmentation
+ */
+export function applyAugmentation(this: Sleeve, aug: Augmentation): void {
+  this.mults = mergeMultipliers(this.mults, aug.mults);
+}
+
 export function findPurchasableAugs(this: Sleeve): Augmentation[] {
   // You can only purchase Augmentations that are actually available from
   // your factions. I.e. you must be in a faction that has the Augmentation
diff --git a/src/PersonObjects/formulas/reputation.ts b/src/PersonObjects/formulas/reputation.ts
index 149d66733..f549493ff 100644
--- a/src/PersonObjects/formulas/reputation.ts
+++ b/src/PersonObjects/formulas/reputation.ts
@@ -1,7 +1,7 @@
 import { CONSTANTS } from "../../Constants";
 import { BitNodeMultipliers } from "../../BitNode/BitNodeMultipliers";
 import { CalculateShareMult } from "../../NetworkShare/Share";
-import { IPerson } from "../IPerson";
+import { Person } from "../Person";
 import { calculateIntelligenceBonus } from "./intelligence";
 
 function mult(favor: number): number {
@@ -12,7 +12,7 @@ function mult(favor: number): number {
   return favorMult * BitNodeMultipliers.FactionWorkRepGain;
 }
 
-export function getHackingWorkRepGain(p: IPerson, favor: number): number {
+export function getHackingWorkRepGain(p: Person, favor: number): number {
   return (
     ((p.skills.hacking + p.skills.intelligence / 3) / CONSTANTS.MaxSkillLevel) *
     p.mults.faction_rep *
@@ -22,7 +22,7 @@ export function getHackingWorkRepGain(p: IPerson, favor: number): number {
   );
 }
 
-export function getFactionSecurityWorkRepGain(p: IPerson, favor: number): number {
+export function getFactionSecurityWorkRepGain(p: Person, favor: number): number {
   const t =
     (0.9 *
       (p.skills.strength +
@@ -35,7 +35,7 @@ export function getFactionSecurityWorkRepGain(p: IPerson, favor: number): number
   return t * p.mults.faction_rep * mult(favor) * calculateIntelligenceBonus(p.skills.intelligence, 1);
 }
 
-export function getFactionFieldWorkRepGain(p: IPerson, favor: number): number {
+export function getFactionFieldWorkRepGain(p: Person, favor: number): number {
   const t =
     (0.9 *
       (p.skills.strength +
diff --git a/src/PersonObjects/formulas/skill.ts b/src/PersonObjects/formulas/skill.ts
index 7f22253ca..e8f0bc479 100644
--- a/src/PersonObjects/formulas/skill.ts
+++ b/src/PersonObjects/formulas/skill.ts
@@ -1,3 +1,7 @@
+/**
+ * Given an experience amount and stat multiplier, calculates the
+ * stat level. Stat-agnostic (same formula for every stat)
+ */
 export function calculateSkill(exp: number, mult = 1): number {
   return Math.max(Math.floor(mult * (32 * Math.log(exp + 534.5) - 200)), 1);
 }
diff --git a/src/Server/formulas/grow.ts b/src/Server/formulas/grow.ts
index 4ab2fa761..a739adf7b 100644
--- a/src/Server/formulas/grow.ts
+++ b/src/Server/formulas/grow.ts
@@ -1,9 +1,9 @@
 import { CONSTANTS } from "../../Constants";
 import { Server } from "../Server";
 import { BitNodeMultipliers } from "../../BitNode/BitNodeMultipliers";
-import { IPerson } from "../../PersonObjects/IPerson";
+import { Person } from "../../PersonObjects/Person";
 
-export function calculateServerGrowth(server: Server, threads: number, p: IPerson, cores = 1): number {
+export function calculateServerGrowth(server: Server, threads: number, p: Person, cores = 1): number {
   const numServerGrowthCycles = Math.max(Math.floor(threads), 0);
 
   //Get adjusted growth rate, which accounts for server security
diff --git a/src/Work/WorkStats.ts b/src/Work/WorkStats.ts
index 442fbfd1b..fb98b66cb 100644
--- a/src/Work/WorkStats.ts
+++ b/src/Work/WorkStats.ts
@@ -1,4 +1,4 @@
-import { IPerson } from "src/PersonObjects/IPerson";
+import { Person } from "src/PersonObjects/Person";
 import { Player } from "../Player";
 
 export interface WorkStats {
@@ -68,7 +68,7 @@ export const scaleWorkStats = (w: WorkStats, n: number, scaleMoney = true): Work
   };
 };
 
-export const applyWorkStats = (target: IPerson, workStats: WorkStats, cycles: number, source: string): WorkStats => {
+export const applyWorkStats = (target: Person, workStats: WorkStats, cycles: number, source: string): WorkStats => {
   const expStats = applyWorkStatsExp(target, workStats, cycles);
   const gains = {
     money: workStats.money * cycles,
@@ -86,7 +86,7 @@ export const applyWorkStats = (target: IPerson, workStats: WorkStats, cycles: nu
   return gains;
 };
 
-export const applyWorkStatsExp = (target: IPerson, workStats: WorkStats, cycles: number): WorkStats => {
+export const applyWorkStatsExp = (target: Person, workStats: WorkStats, cycles: number): WorkStats => {
   const gains = {
     money: 0,
     reputation: 0,
diff --git a/src/Work/formulas/Class.ts b/src/Work/formulas/Class.ts
index 54ede73fb..d685e497b 100644
--- a/src/Work/formulas/Class.ts
+++ b/src/Work/formulas/Class.ts
@@ -8,7 +8,7 @@ import { WorkStats } from "../WorkStats";
 import { Server } from "../../Server/Server";
 import { GetServer } from "../../Server/AllServers";
 import { serverMetadata } from "../../Server/data/servers";
-import { IPerson } from "../../PersonObjects/IPerson";
+import { Person } from "../../PersonObjects/Person";
 import { LocationName } from "../../Locations/data/LocationNames";
 
 const gameCPS = 1000 / CONSTANTS._idleSpeed; // 5 cycles per second
@@ -20,7 +20,7 @@ export function calculateCost(classs: Class, location: Location): number {
   return classs.earnings.money * location.costMult * discount;
 }
 
-export function calculateClassEarnings(person: IPerson, type: ClassType, locationName: LocationName): WorkStats {
+export function calculateClassEarnings(person: Person, type: ClassType, locationName: LocationName): WorkStats {
   //Find cost and exp gain per game cycle
   const hashManager = Player.hashManager;
   const classs = Classes[type];
diff --git a/src/Work/formulas/Company.ts b/src/Work/formulas/Company.ts
index 801b8813b..710cd89e6 100644
--- a/src/Work/formulas/Company.ts
+++ b/src/Work/formulas/Company.ts
@@ -4,9 +4,9 @@ import { Player } from "../../Player";
 import { WorkStats } from "../WorkStats";
 import { BitNodeMultipliers } from "../../BitNode/BitNodeMultipliers";
 import { CONSTANTS } from "../../Constants";
-import { IPerson } from "src/PersonObjects/IPerson";
+import { Person } from "../../PersonObjects/Person";
 
-export const calculateCompanyWorkStats = (worker: IPerson, company: Company): WorkStats => {
+export const calculateCompanyWorkStats = (worker: Person, company: Company): WorkStats => {
   const companyPositionName = Player.jobs[company.name];
   const companyPosition = CompanyPositions[companyPositionName];
 
diff --git a/src/Work/formulas/Faction.ts b/src/Work/formulas/Faction.ts
index 0a2913f38..1dd704c3a 100644
--- a/src/Work/formulas/Faction.ts
+++ b/src/Work/formulas/Faction.ts
@@ -1,4 +1,4 @@
-import { IPerson } from "../../PersonObjects/IPerson";
+import { Person } from "../../PersonObjects/Person";
 import { BitNodeMultipliers } from "../../BitNode/BitNodeMultipliers";
 import { CONSTANTS } from "../../Constants";
 import { FactionWorkType } from "../data/FactionWorkType";
@@ -30,7 +30,7 @@ export const FactionWorkStats: Record<FactionWorkType, WorkStats> = {
   }),
 };
 
-export const calculateFactionRep = (person: IPerson, tpe: FactionWorkType, favor: number): number => {
+export const calculateFactionRep = (person: Person, tpe: FactionWorkType, favor: number): number => {
   const repFormulas = {
     [FactionWorkType.HACKING]: getHackingWorkRepGain,
     [FactionWorkType.FIELD]: getFactionFieldWorkRepGain,
@@ -39,7 +39,7 @@ export const calculateFactionRep = (person: IPerson, tpe: FactionWorkType, favor
   return repFormulas[tpe](person, favor);
 };
 
-export function calculateFactionExp(person: IPerson, tpe: FactionWorkType): WorkStats {
+export function calculateFactionExp(person: Person, tpe: FactionWorkType): WorkStats {
   const baseStats = FactionWorkStats[tpe];
   return {
     money: 0,