Also, when they do this, this could make Radios useful for more than just arty strikes.
So if a player is standing next to a Radio when using voice chat/voice commands, anyone with a tank radio can hear it, and anyone standing next to another radio can hear whats being said. Also they could put some effects on the voice coming out of the radio, like in CoH, so it sounds like its actually coming out of a radio.
While maybe not good for casual public play, it would be good as a server options for clan matches, as it would add another layer of tactics if players have to actually think about how to communicate with the rest of the team.
of course people could get around it with teamspeak but i'd hope players would prefer the realism.
Heck, this could even add a codebreaker/radio operator class, who could fiddle with the radio to try and listen in on enemy voice chat/radio commands, and especially things such as artillery co ordinates, so that the friendly team would be warned on the map where the arty strike was coming.