But why would you assume that prototype units will automatically be overpowered, compared with i dunno, anything else that's in the game?
Because, my good friend, I have an expert's knowledge on the way Nazi Germany conducted its military research (did a stats project on WW2 Operational Research as part of my master's degree).
Hitler personally signed off on anything that claimed to be "the best best best ever" not caring about costs. Everybody knew shit like Maus and Ratte was completely combat stupid but they got the proof to carry on since the boss signed off on it.
Compare that to the way USA, UK and (to a lesser extend) USSR conducted their military research: tons of committees, scientists etc. striving to find the golden ratio... sure that's how it
should be done but nothing trully shockingly huge comes out of it...
Compared with Maus let's say.
You decide to put 250mm of fucking grade A steel armor topped with a fucking 12.8cm PAK gun you sure as fuck are going to be making something really OP for COH standards. Just imagine a vehicle with an elefant gun, a TigerII armor and Jagdtiger range... I can already hear the alliedcucks coping