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

Even if your system runs modern environments like DirectX 12, legacy titles built on older graphical and audio application programming interfaces require absolute backward compatibility packages to unpack their compressed audio banks:

Navigate to your (e.g., C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Black Ops II ). Find a file named localization.txt in the main directory. Open it with Notepad. Change the first word from polish to english . Save the file and try launching the game. Method 2: Verify Game Files (Steam) Black Ops 2 Sound Bank Failed To Load Cmn-root.polish