I suggest to turn down team footsteps, it's super annoying looking around for a an enemy just to realize it's your teammate. Maybe tune it down by 25% so we can still hear but not as loud as the enemy.
Turning off/down music completely. I have my music turned down to 0 and when a SnD game at a clutch moment the music is just blasting. My opinion - games that involve sounds to locate enemies shouldn't have music in-game.