Black Ops 2 Sound Bank Failed To Load Cmn-root.polish

The "Sound Bank Failed to Load Cmn-root.polish" error in Call of Duty: Black Ops II

For Steam users, right-click the game in your library -> Manage -> Browse local files. Locate a file named localization.txt in the main folder. Right-click the file and open it with Black Ops 2 Sound Bank Failed To Load Cmn-root.polish

You purchased a version of the game (often from a third-party key site) that only contains Polish or Russian files, but your Steam client is trying to run it in English. The "Sound Bank Failed to Load Cmn-root