Another question:
Do you ever have "wingmen" that are under your control? In the map screen it seems to imply that I can give orders to other tanks. I've played about 6 missions of the first shipped campaign and 3 user created campaign missions, and I don't think I've had any "wingmen". How can you tell if another tank is under your command?
Give orders and see if anyone follows
Your wingmen are nearby, in most cases,