hi,
i dont know, if it is intended / known / or bug, so an official answer would be nice.
if you place a RED unit on the map, transmitting on FM 40.50 for example, including an ogg file and loop it, than place i.e. a huey on BLUE side and and tune your FM homing to this frequencie, you never get a signal.
thing is:
i would understand the reasons for gameplay to handle RED / BLUE comms seperatly, but in RL you would be able to listen to any frequencie, although you might not understand what you here / recieve due to other language or encryption.
so, is it intended to be that way? or is it a bug?
whatever it is, for gameplay reasons maybe add a checkbox in the mission setting ala allow / deny cross coalition radio recieve?
regards,
RR