Piats are the best AT and AI weapon ingame.
The shoot accurate as hell over the full distance, and you can easily kill german tanks from behind with 1-2 rockets, and have still one left to damage another one!.
Germans: Panzerfaust, 30m, bad view with the weapon, and you also need to get to sides to kill something, then you need to run back.
and btw take it as it is Tao, German tanks had better armour on the mass of their tanks!
edit: Quality =/= quantity.
edit 2: More playing would help you, you make too many suggestion / post stuff / ect when noone ever sees you actually playing