Clearly some of the older tanks/atgs will struggle versus the modern heavy armor depicted in the game. Having them hit on 6 makes perfect sense. What seems a bit off is their factors vs Light Armor and Soft Targets. They would NOT struggle to kill the light stuff. While an M-1 might scoff at being shot at by a T-55, an M-113 or a Bradley would and should be terrified. Unfortunately, the current factors do not reflect that.