[mookiemookie]

From a gameplay standpoint, I would skip the friendly fire aspect. As a player, you expect that your enemies would be Allied units and not your own. To be attacked by an Axis unit would break the unspoken contract between game designers and players that says "this is your target over here and this is your buddy over here". While I understand that this may have happened (rarely) in real life, I think this is a case where gameplay needs to win out over realism.