Well this has been a pain for a long while, especially in RB battles, the current situation in RB is: for ground vehicles they can only access maps for grounp-battle, which is on a larger scale and have more details; and for aircrafts, they can only access the maps for air-battle, which is on a smaller scale and have less details. (Check image below if you have no idea what I’m saying)
So here comes a problem when players get on an aircraft, the pilot can bearly read the pin marks from his allies on the ground, the maps for air-battle cover the area so large that it’s hard to identify any streets or houses or roads in the ground-battle area.
And there’s also a problem for players on ground vehicles, more specifically on an SPAA, if one of the players saw an aircraft/helicopter they’re not able to mark their’s actual location in map since the map shows the area for ground-battle, it’s so small that aircraft/heli is out of its range.
In this way you can find the communication in the gameplay is partly blocked and cause a low efficiency.
I think this can be easily done by adding a selective tab in the UI, so players can easily switch between two type of maps. (See below)