I don't think it's just rng. It's rng and high armour. 3 paks to the front and 2 panthers in the rear (one of them a command panther) couldn't take out 1 of 3 IS-2s. They never tried to maneuver, just sat there and tanked all the shots while focusing down my tanks. We were focusing on one IS-2 and it never went below 25% hp.
I've never seen a tiger just shrug off multiple dedicated AT shots like that while at the same time obliterating squads with its 4.0 AOE.
It is just rng. High armor value still relies on rng. Rng controls it all.
A Tiger wouldn´t have bounced that many shots from a SU-85, Zis and T-34/85. StuGs with less range than a Su-85 and no turret should actually be able to somewhat reliably pierce through a heavy tanks armor. After all we see 85mms going through everything also.
The point was to show that it´s not just uncommon rng bad luck. I have those kind of bounces on a regular basis. Rng dependent but common, very common. And if one can park his tank unharmed in the middle of StuGs, Paks etc and pick them off without trouble, the game experience is bad.
I have had instances where people weren't paying attention to tigers for good few minutes and I pound on it from max range with SU-85 with more bounces than the video. Penetrations were less than 50%. I think I uploaded replay too, but it might be other version.
****Edit*****
Replay proof:
http://www.coh2.org/replay/18374/thanks-rng