At times, I successfully one-shot a Sherman V from distance using Koenigstiger at Goodwood. I killed many good bots in Cromwells and Shermans inside that Koenigstiger. One bugged round from a Firefly only reduced half of my health bar. However, one silly thing I encountered is that my 88 mm round bounced off a M3 Halftrack's sloped frontal aspect. I was finally killed by swarm of bots throwing Satchels at me when I drive inside Cagny with some German bots who sit tight on the hull, and refuse to get out of my tank to fight as infantries.
I can tolerate that situation, I could LARPing in-game, imagining that the ROQF factory that produce the 17 pdr shell that hit me, happens to dish out defective shells. Or the M3 drivers and its occupants were simply lucky, using their 5 years worth of lifetime luck.
But at situation like Erwin's, I couldn't fathom why it isn't considered a bug or an undesirable in-game mechanics.