Disclaimer: IW4x is a fan-made project and is not affiliated with Activision or Infinity Ward.

Since the X Labs launcher is defunct, users typically use the or direct client files.

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Add the AlterWare Launcher as a non-Steam game and run with Proton Experimental. 4. Post-Install Setup & Features

: Open Steam, right-click Modern Warfare 2, select Properties > Installed Files , and click Verify integrity of game files . Once Steam repairs the files, re-run your IW4x launcher. Anti-Virus False Positives

A quick tap of the ~ key opens the console to type /name [YourName] , claiming your identity in the new lobby.

: Instantly browse and join low-ping community servers.

: Lean support, custom field-of-view (FOV) sliders, and unlocked frame rates. Prerequisites Before Installation

Type /com_maxfps 0 (unlocked) or /com_maxfps 144 (or match your monitor's refresh rate) and hit Enter. Adjust Field of View (FOV) Go to > Multiplayer > FOV .