Black Ops 2 is an older title and sometimes struggles with high-end audio configurations. If your Windows sound settings are set to a sample rate that is too high, the engine may fail to initialize the sound bank. Right-click the in your taskbar. Select Sounds or Sound Settings > More sound settings .
This is the first and most important step. Corrupted or missing sound banks are often repaired here. Black Ops 2 is an older title and
The game relies on legacy audio libraries. Black Ops 2 is an older title and