Just a small thing however, I think the audio played when coming to a stop after moving is a split second too late. The sound is both feet coming to a stop, albeit this is happens the player is already still. I also believe that the audio played back to you while crouched is too high. Making it difficult to hear other players movement while moving crouched, as you hear your kit better then theirs.
On a side note I like the option to tweak the audio pitch of the other sides weapons, as both sides carry the same guns. This makes IFF via audio harder, and I think would make a good addition.

