Right-click and select Properties . Select the Installed Files tab on the side panel. Click the button labeled Verify integrity of game files .
startup file is located) and paste the files, allowing them to overwrite any existing files. Method 3: Verify Integrity of Game Files (Steam Users) Black Ops 2 Sound Bank Failed To Load Cmn-root.polish
Go back to the main game folder and the files over the existing ones in the root directory. Method 4: Verify Integrity and Repair Core Files Right-click and select Properties
: According to documentation on PCGamingWiki , switching languages via the Steam client or in-game menus can trigger build initialization mismatches. Black Ops 2 Sound Bank Failed To Load Cmn-root.polish