If you are taking suggestion, perhaps you can make this in the future. Say if a tank is idle, he is "chatting" or "listening" to channels. I remember when i played CTA Modern Warfare mod, they implemented stuff like this. Chatters from CODMW.

as for WW2, you can see here 0:17 to 0:21
https://youtu.be/2sfPo6QDgzk?si=-Hkd4WbkfcZOHU-3&t=17

as well as here 2:09 to 2:16
https://youtu.be/XlLGV5pSlXo?si=kJmrHrPPhRDUORjk&t=129