I would love the ability to mute various channels independently. When I'm in a platoon, I don't need my Outfit chatter talking over my platoon leader, and when my squad leader has been given specific instructions to carry out, it is distracting to have the continued platoon chatter in the background. I would love to have independent muting so that I could quickly manage my voice channels.
There needs to be push to talk functionality. I'm tired of listening to other players games in proximity. I can mute or reduce the volume of players in squad, but not proximity. Get like 12 players in one place, with crappy headsets and it's unbearable.