For PlayStation and Xbox users, this error often stems from missing "Data Packs." Go to or Add-ons for MW2.

Click . Steam will automatically detect the missing "zone" file and redownload a working version. Battle.net Users: Select the game in the Battle.net launcher. Click the Gear icon (Options) next to the Play button. Select Scan and Repair to fix corrupt UI or zone files. Console Users (PS5/Xbox):

: Downloading files from unknown or untrusted sources can pose significant security risks, including the installation of malware, viruses, or spyware on your device.