I've noticed that there are some unused sounds, or their rarely played, but i replaced them aswell. This addon is a mix of sounds used in black ops 1, 2 and 3, aswell as new sounds (which are the majority of the sounds in this addon) from cod bo3 DLC 5 (Zombie Chronicles). The solution to the above problem is actually quite. Resolve The Sound Issue on Call of Duty Black Ops. Read on below for the very simple solution. This doesn't happen in multiplayer mode so you might wonder what the problem is.
Stream ad-free or purchase CDs and MP3s now on. Sometimes after launching the campaign mode of Call Of Duty Black Ops, the sound goes out (just after the cinematic). Replaces The Common Infected Sounds with sounds from the zombies of cod's zombie mode. Check out Call of Duty: Black Ops Zombies (Original Game Soundtrack) by Treyarch Sound on Amazon Music. Of course i added the standard sounds they used to make in the other black ops parts too. After a long time searching for the zombies sounds they used in black ops 3 Zombie chronicles DLC, I have finally found them and replaced the common infected sounds with them.