Ok, so this can either turn out to be a really dumb and sh*t idea, or this could be immersive.
Dynamic Communications:
When a player uses the “radio”, you will hear his voice in your right, or left ear. (depends on what you choose this in the settings menu?)
This could help understanding what everyone on comms is saying whilst people around you ingame are talking, locally.
Since this idea CAN be pretty annoying for some people (if the idea makes it ever into the game) people should be allowed or having the option to turn this effect off, for example:
Radio&Earpiece audio: Left Ear / Normal / Right Ear
I think in chaotic situations this idea could be helpfull and might be more immersive like you are actually wearing an earpiece/headset for the comms.