SO when you quote history you are wehraboo... sad.
a lot of german tanks got large kill counts, yes this is not something one can dispute much (apart from claiming exaggerated kill counts, but that is not the topic). These heavy tanks (ferdinand/Elefant, JT, KT) are all extremely strong tanks (armor and gun wise), this is undisputed, but the CRIPPLING reliability meant that these "unstoppable" machines were knocked out by themselves, their operational ability also impaired, yada yada bla bla. Their low production numbers meant that each loss was significantly more devastating than the three or four tanks it single handely killed. Their cost was also extreme, each of them costing several panther tanks at once.
Instead of making several more lighter tanks that were successful enough, one went above and beyond to make expensive heavy tanks that were probably overkill until the advent of the is-2
TLDR german late war heavies are overrated, "lighter" tanks were a better idea
German tanks were made to be reliabe for 400-500miles at most and they were expected to traverse distances of even 25km daily. Come on man... read some book
most tanks were expected to last around 1000km but the german (heavy) ones in particular could (and did) break down or set themselves on fire pretty much immediately. Allied ones could break down well before the expected time, but these allied tanks were way easier to repair than overengineered german ones
but this is coh2, the only thing that matters is german mythology on armor and massive armor/gun size with formula 1 panthers