extra damage? Options

[Sgt.Slappy]

I've noticed sometimes when I play, some players can knock out my tank (or team tanks) with fewer hits to front armor, at the same time their tanks have the ability to take more damage. For example today, I was in the StuG, with full armor, and was destroyed with 1 hit to my font armor from a Russian heavy tank. It usually takes 2-3 hits to front armor... is there some kind of "sweet spot" in the armor of certain tanks? Or another time I was playing on the Russian team, and was driving a heavy, took 6 hits to kill one particular axis light tank (should have taken 2). Is this possible hacking? This brings up the question: how many hacks are there, and how do you identify their telltale signs? Sorry I don't have any screenshots.

[Silver]

i have noticed that too. sitting in my spot spawnkilling ill be there for a minute and all of a sudden one guy wi;; jump out with a rocket and poof im gone. (to the front that is...) i thnk it has to do with the amount of time you are into the tank. i may be wrong. some tell tale signs are
guy prefiring or shooting you through black windows...like drawing a bead on people he cannot see.(wall hack) shooting you up through the ground. things like that.(land sharking)