It would be much more immersive, more realistic (and coolest!) If the transmissions of a my partner could remove the radio from the inventory and hear anyway ...
For example: I'm playing the campaign, take off my radio, I hear in the distance the broadcast that "Broadway" is sending from my commander radio, "Sgt. Adams." I want this because if I remove the radio from the inventory can no longer communicate with anyone even with the direct verbal communication talking about the commands "position report" type or "engage ..."
it is as if communication was related only to the radio, as if the dialogues came to pass only through the radio, never in direct communication.
If you could do, it would be a crazy cool!