First post, and thanks for a great game!
I was trying a Max Carnage Ultraviolence run with a Marine, when I noticed I wasn't getting certain sounds. Monsters were completely silent, and reloading, pickup and weapon swap did not produce any sound. I could hear my own shots and the game music, though.
I kept playing until Hell Arena, when I noticed I was getting sounds working properly again when I was using a shotgun. I realized the sound issues only took place when I was wielding the chaingun I had taken from a random former captain; what's more, only this particular chaingun caused them, as the one found in the Arena had all SFX working properly.
I saved the game after completing the Arena. I still have the silent chaingun, and I copied the full directory to a safe location (I'm not sure what the save game files are) What should I do?