Call of Duty: Modern Warfare 3 (MW3) - Best Field Equipment Upgrades

All Recommended Field Equipment Upgrades for Call of Duty: Modern Warfare 3 (CoD: MW3)

List of all recommended field equipment upgrades for best and notable weapons in Call of Duty: Modern Warfare 3 (CoD: MW3), including how to unlock each upgrade in the game.

Call of Duty: Modern Warfare 3 (MW3) All Best Loadouts

Overall Best Field Equipment Upgrades

Call of Duty: Modern Warfare 3 (MW3) All Field Equipment List

For general survivability.

Field Equipment	Effect	How to Unlock
A.C.S.	Called the Automated Computer Strike. This tool is capable of temporary hacking surrounding enemy devices while capturing points in various modes (Domination, Hardpoint, Control, and Ground War)	Reach Level 6.
Med Box	Deploys medical supplies to you and your allies in order to shorten the healing time.	Reach Level 28.

For Specific Game Modes.

Field Equipment	Effect	How to Unlock
Comm Scrambler	Disables enemy UAVs and intel systems to detect you and your squad when you are within the range of the field upgrade. Location of Scramble is still visible on the enemy mini map.	Reach Level 13.
Munitions Box	Deploys a box that provides you and your group with more ammunition and supplies.	Already Available.
Trophy System	Deployable defense system which targets enemies automatically and destroys up to three pieces of equipment and projectiles. Large target may need multiple shots.	Reach Level 18.

Recommended Field Equipment Upgrades for Gun Weapons

Call of Duty: Modern Warfare 3 (MW3) All Weapon List

Best Field Equipment Upgrades for Assault Rifles (ARs)

MCW

Field Equipment Upgrade	How to Unlock
Trophy System	Reach Level 18.
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) MCW Weapon Guide

MTZ-556

Field Equipment Upgrade	How to Unlock
Comm Scrambler	Reach Level 13.
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) MTZ-556 Weapon Guide

SVA-545

Field Equipment Upgrade	How to Unlock
Comm Scrambler	Reach Level 13.
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) SVA 545 Weapon Guide

Best Field Equipment Upgrades for Battle Rifles (BRs)

BAS-B

Field Equipment Upgrade	How to Unlock
Trophy System	Reach Level 18.
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) BAS-B Weapon Guide

MTZ-762

Field Equipment Upgrade	How to Unlock
Comm Scrambler	Reach Level 13.

Call of Duty: Modern Warfare 3 (MW3) MTZ-762 Weapon Guide

Best Field Equipment Upgrades for Handguns (Pistols)

Cor 45

Field Equipment Upgrade	How to Unlock
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) Cor-45 Weapon Guide

Renetti

Field Equipment Upgrade	How to Unlock
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) Renetti Weapon Guide

Best Field Equipment Upgrades for Launchers

Pila

Field Equipment Upgrade	How to Unlock
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) Pila Weapon Guide

Best Field Equipment Upgrades for Light Machine Guns (LMGs)

Holger 26

Field Equipment Upgrade	How to Unlock
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) Holger 26 Weapon Guide

Best Field Equipment Upgrades for Marksman Rifles (MRs)

MCW 6.8

Field Equipment Upgrade	How to Unlock
Trophy System	Reach Level 18.

Call of Duty: Modern Warfare 3 (MW3) MCW 6.8 Weapon Guide

MTZ Interceptor

Field Equipment Upgrade	How to Unlock
Trophy System	Reach Level 18.

Call of Duty: Modern Warfare 3 (MW3) MTZ Interceptor Weapon Guide

Best Field Equipment Upgrades for Sniper Rifles (SRs)

KV Inhibitor

Field Equipment Upgrade	How to Unlock
A.C.S.	Reach Level 6.
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) KV Inhibitor Weapon Guide

Longbow

Field Equipment Upgrade	How to Unlock
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) Longbow Weapon Guide

Best Field Equipment Upgrades for Submachine Guns (SMGs)

AMR9

Field Equipment Upgrade	How to Unlock
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) AMR9 Weapon Guide

Rival-9

Field Equipment Upgrade	How to Unlock
Trophy System	Reach Level 18.
Comm Scrambler	Reach Level 13.
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) Rival-9 Weapon Guide

Striker

Field Equipment Upgrade	How to Unlock
A.C.S.	Reach Level 6.
Munitions Box	Already Available.

Call of Duty: Modern Warfare 3 (MW3) Striker Weapon Guide

Other COD: MW3 (2023) Guides

Call of Duty: MW3 Best Weapons and Loadouts Guides

Best Weapons

▼Call of Duty: MW 3 Best Weapons Guides
Best Weapons Tier List
Best Assault Rifles	Best SMGs
Best LMGs	Best Shotguns
Best Battle Rifles	Best Sniper Rifles
Best Marksman Rifles	Best Handguns

Best Loadouts

▼Call of Duty: MW 3 Best Loadouts Guides
Best Loadouts
Best Attachments	Best Perks
Best Field Equipment Upgrades	Best Lethal Equipment Upgrades
Best Tactical Equipment Upgrades

Call of Duty: MW3 Campaign Walkthrough

▼Call of Duty: MW 3 Story Walkthrough
Story Campaign Walkthrough
Operation 627	Precious Cargo
Reactor	Payload
Deep Cover	Passenger
Crash Site	Flashpoint
Oligarch	Highrise
Frozen Tundra	Gora Dam
Danger Close	Trojan Horse

Call of Duty: MW3  Zombies (MWZ) Guides

MWZ Story Missions

▼Call of Duty: MW3 Zombies Story Missions
Act 1 Missions List and Rewards	Act 2 Missions List and Rewards
Act 3 Missions List and Rewards

MWZ Guides

▼Call of Duty: MW3 Zombies Mode Guides
Zombies (MWZ) Guide	All Zombies (MWZ) Mission Rewards
All Unlocked Features in Zombies (MWZ)	All Wonder Weapons List

Call of Duty: MW3 Game Guides

Useful Guides

▼Call of Duty: MW3 Useful Guides
Trophies and Achievements List	Permanent Events and Missable Features
Best Weapons Tier List	Best Loadouts
Best Field Equipment Upgrades	How to Unlock All Weapons
How to Unlock All Lethal Equipment	How to Unlock All Tactical Equipment
How to Level Up Fast	How to Earn Weapon XP Fast
Best Graphics Settings	Best Gameplay Settings
How to Increase FPS	Tips for Aiming
Gunsmith Guide	Advanced Techniques Guide
How to Change Language	All Operator Skins List
All Campaign Mission Rewards	All Zombies (MWZ) Mission Rewards
All Unlocked Features in Multiplayer	All Unlocked Features in Zombies (MWZ)
How to Beat Veteran Difficulty Easily	Carry-Over Features from MW2
Double XP Event Schedules	How to Get Double XP Tokens
Do Double XP Effects Stack?	How to Unlock All Mastery Camos
Special Events Schedules and Rewards	How to Turn Off Voice Chat
How to Adjust Aim Sensitivity	How to Disarm the Bomb in Trojan Horse

Beginner Guides

▼Call of Duty: MW3 Beginner Guides
Beginner's Guide: Things to Do First	Tips for Beginners
Game Modes (Playlists) Guide	How to Play Online
How to Add Friends	How to Form a Party
Best Weapons for Beginners

Gameplay Guides

▼Call of Duty: MW3 Gameplay Guides
Tips for Aiming	Time-to-Kill (TTK) Guide
How to Slide Cancel	How to Revive Teammates
How to Quickscope	How to Do Finishing Moves
Gunsmith Guide	How to Lean

Call of Duty: MW3 Basic Information

▼Call of Duty: MW3 Basic Information
Pre-Order Bonuses and Game Editions	PC System Requirements
Regular Edition vs. Vault Edition	Game Difficulty
How to Claim Pre-Order Bonuses	Best Graphics Settings
Early Access Guide	New Weapons
How Long to Beat (Story Campaign)	Do You Need Internet Connection to Play?
Does the Game Have Cross-Play?

Call of Duty: MW3 Game Database

Weapons

▼Call of Duty: MW3 Weapons Database
All Weapons (Guns)
Assault Rifles	SMGs
LMGs	Shotguns
Battle Rifles	Sniper Rifles
Marksman Rifles	Handguns
Launchers	Melee Weapons
Conversion Kits

Perks and Equipment

▼Call of Duty: MW3 Equipment Database
Perks	Attachments
Tactical Equipment	Lethal Equipment
Field Equipment	Killstreaks

Other

▼Call of Duty: MW3 Other Database
Operator Skins	Calling Cards
Mastery Camos	Maps

Call of Duty: MW3 Game Forum

▼Call of Duty: MW3 Forum
Chat Board	Question Board
Bug Report Board