Very true, I was playing with my friend and thought we were both in close proximity from one another - each one of us could hear distinct gunfire the other one could not.

This is a serious issue so please upvote for visibility, it must be addressed.

Make sure that is your using teamspeak, that no one else is in your lobby playing the effects, some friends of mine feel for that. Idk if this is ur problem or not just figured id throw it out there.

Closing as duplicate of #0011461: No gunshot sounds on hardcore/first person

Please vote up the original issue to increase visibility, add any extra information in the notes section, and monitor it for further developments.