When asked if you want to replace existing files, select "Yes" or "Replace all." Step 4: First Time Launch and Update

Open Steam, right-click Call of Duty: Modern Warfare 2 in your library. Go to > Browse local files .

While not required, most servers run DLC maps. You can download these and place them in the directory within your game folder. To add custom mods or trickshot menus, create a

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 .

If your game crashes immediately, do this:

Locate alterware-launcher.exe in your computer's Downloads folder.

Warning: Ensure you download files only from trusted community archives or trusted discord networks associated with decentralized master servers (like AlterWare or similar community-driven forks), as the original XLabs trackers were taken down. Step 2: Download the IW4x Client Launcher

You didn't go through this just to play at 60 FPS.