For players using the official Steam version, the following steps may resolve file discrepancies: Reddit·r/PiratedGames
Search for all files containing the word "polish" (there should be about 44 files). Black Ops 2 Sound Bank Failed To Load Cmn-root.polish
If the first word in the file is , change it to "english" . Save the file and try launching the game again. 2. Rename Sound Bank Files For players using the official Steam version, the
Paste and replace these into the where the .exe files are located. Steam-Specific Solutions Black Ops 2 Sound Bank Failed To Load Cmn-root.polish
If you are using a version of the game that includes a _Language Switcher folder:
Copy all files inside (usually three files: localization.txt , localization_mp.txt , and localization_zm.txt ).
Navigate to your Black Ops 2 installation folder (e.g., C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Black Ops II ).