• This sound fix for Black ops 2 allows you to have hdmi graphics and avi sound. Heres the steps you will need to follow.
• Step 1. sound settings.
• Step 2. select Audio output settings.

Step 3. change audio to (Audio input connector/Scart/Av multi.) save

Step 4. Go to audio multi output (turn on) save.

Step 5. play game. (enjoy hdmi video with working sound)