I'm really looking forward to this mod as with any WW2 Arma II modification!
I do hope that with all the new tanks you will make some sort of penetration model instead of just hitpoints. An individual T-34 would for example be no match against a Tiger, however at close range a T-34 could penetrate the armour of a Tiger. A Panzer III or IV is likewise no match for a T-34. It would be fantastic if this could be implemented. Also some sort of nice fixed fortifications would be fantastic, a forward command bunker for example. Maybe you could implement some sort of module when inside a bunker for directing Artillery fire for example or something like the Command system added in Arma II when inside such a bunker.