Yes, some things need tweaking...See "One Shot Kills" in this section somewhere? Tiger and M4 both can be easily killed even with a panzer and light t-34. Also, there are very few small trees which would deflect the tiger or M-4 course at speed, much less stop them dead, but a 10-20lbs(?) shell traveling near the speed of sound is not going to stop at a bush or deflect enough, from a small limb, to save the tank from repeated hits....and I've been running into these trees painted on impenetrable glass lately. You cannot shoot through it, drive through it, or see objects beyond them accurately. Yes some things need to be tweaked.