I had "problems" with radio communications in a training mission. A minor problem, but still a bug:
Version: Xbox 360
Setup: Channel Area, Realistic mode, daytime, weather clear unlimited time, unlimited ammo, HUD off
My aircraft: Spitfire IX
Enemy: 1 x He 111
When the mission started I turned away from the enemy and flew towards land. When reaching the coast line I started to hear radio conversation in
russian. And yes I can tell the difference between russian, english and german eventhough Im swedish. Here I am, flying a british plane over Great Britain with a german opponent and Im hearing russian voices. A pretty common event when using our field radios when I did my military service in the Royal Swedish Marines in the Baltic Sea area in the early 90's - but in IL-2 its clearly a bug.