Option to mute other voice channels when listening/speaking
The volume control of the different voice channels are not sufficient to filter out what's important and not, since you need to be able to switch between different channels in quick succession all the time, when you play as squad lead.
The amount of chatter that goes on simultaneously is quite insane, and I suggest the following mechanic to resolve the often overwhelming chatter on all channels:
When pressing and holding the shortcut key to speak on a specific channel (G, V, B) , the other channels should be muted or their volumes reduced, while you are holding the speak-shortcut button.
Add the option to choose to listen to one channel, but not speak, by press-and-hold ALT+G/V/B. All other channels are muted/volume reduced.
This would be very efficient, as you are then able to focus on one discussion at a time, clearly hearing Command, and Squad or Local because the other channels goes mute.
The amount of volume decrease could be a slider, "Volume level for other channels when voice-focus activated:", 0-100, where 100 is no change and 0 is muted.
This would encourage people to play SL more, I think.