Does this crash happen on , Multiplayer , or the Campaign ?
For official Steam versions, ensure all parts of the game are synchronized to the same language. Right-click Call of Duty: Black Ops II (and its Multiplayer/Zombies components) in your Steam Library Properties Black Ops 2 Sound Bank Failed To Load Cmn-root.polish
Understanding why this crash happens helps prevent it after a clean install: Does this crash happen on , Multiplayer , or the Campaign
When Call of Duty: Black Ops II boots, its initialization engine reads the local configuration to determine which localized text, fonts, and sound libraries to build into memory. The crash happens due to three main scenarios: The crash happens due to three main scenarios:
for the Multiplayer and Zombies entries in your library. If one is different, the game will crash with a sound bank error. 2. The Manual File Rename (Quick Fix)