Call of Duty: Modern Warfare 3

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Call of Duty: Modern Warfare 3

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Developers
	Infinity Ward
	Sledgehammer Games
Publishers
	Activision
Engines
	MW3 engine
Release dates
Windows	November 8, 2011

Warnings

The macOS (OS X) version of this game does not work on macOS Catalina (version 10.15) or later due to the removal of support for 32-bit-only apps.

General information

Official Call of Duty series site

Steam Users' Forums

Steam Community Discussions

Call of Duty Wiki - A detailed wiki for every Call of Duty game made.

Availability

All versions require Steam, including retail.

Essential improvements

Utilities

• MW3 Configuration Utility - advanced mouse and graphics settings utility.
• Call of Duty: Modern Warfare 3 Multiple Profiles - allows user to hack in the feature of multiple profiles (managed in a utility external to the game).

Game data

config.cfg is for single player, config_mp.cfg is for multi-player

Save game cloud syncing

System	Native	Notes
Steam Cloud

Input settings

Controller support

Game pad controllers are not supported by Modern Warfare 3. Please check our controller page for information about how to hack controller support into the game.

Audio settings

Audio issues

Instructions

Network settings

Port 3074 (UDP) must be open to join and host multi-player games. Unlike Black Ops, the game does not support automatic port assignment through UPnP.

Users may opt to host their own dedicated, unranked multi-player servers as an alternative to the ranked matchmaking. This requires the hosting computer to have a sufficient processor and a minimum bandwidth, and the game to be installed. The server is launched from iw5mp_server.exe and can be configured with the play list recipes and server.cfg in the admin folder. In order to join dedicated servers, the option must be enabled from the in-game menu under the Dedicated Server category. You may list game servers using Steam's Server list function, and view the status of any server through the Join Game dialogue, or use the in-game server browser found under the Servers menu.

Issues fixed

A small tweak guide is available at PC Gamer

A collection of potential crash fixes are available at Crash Fixes

Black screen on start-up

Instructions

PC crashing/freezing in-game

Instructions

Instructions

Game freezes during the intro video

Instructions

Crash to Desktop

Instructions

Windows XP:

Instructions

DirectX error while loading

Instructions

Cannot install

Instructions

Failed to run install script

Instructions

Multi-monitor issues

Instructions

Nvidia Optimus

Instructions

Fuzzy textures

Instructions

DirectX 9 compatibility with older video cards

Instructions

Mouse problems

Instructions

RELIABLE COMMAND BUFFER OVERFLOW

Instructions

Steam Error – 55: This game is currently unavailable. Please try again at another time.

Instructions

DLC content is required. Required map (map name) is missing or damaged.

Instructions

System requirements

Windows
	Minimum	Recommended
Operating system (OS)	XP	7
Processor (CPU)
System memory (RAM)
Hard disk drive (HDD)	8 GB
Video card (GPU)	GeForce 210 Radeon HD 3650 1 GB of VRAM	GeForce 8800 GS Radeon X1900 series