At the start of each match, each team can choose a radio channel. If the other team guesses the opposing teams radio channel, they can get their coms. Maybe their channel number could be hidden somewhere on the map? It would be very cool to have realistic communication. Also, if you take a lot of damage or die, you can drop your radio and enemies can pick it up to get your teams' communication.
- everyone has a radio item
- you can modulate the frequency with a knob
- when you die, you die, your character and all his items lay there
- since your radio is still set to your teams frequency, enemies will be able to forward it
and intercept your vc