That's the problem with this game, strange build orders = you lose. You can't deviate from the basic plan as it's pointless against any half decent player.
This is what I'm talking about. I'm not talking about just simply diversity in mid-game/early late game but diversity of units that are also
viable. Right before the endgame doctrine units come out (tigers, IS, ISU, Elephant), the game is set in the PIV vs. SU-85 in a cat mouse chase.
Russian T2 (maxim, mortars,ATG) is much more viable than T1 (penal, snipe, clown car) and T4 (SU-85) is much more viable than T3 (T-34). This forces them down the same path on average every time against two evenly matched players. As a result, the german answer will be on average the same: PIV spam to panthers/tiger/elephant which will result in more SU-85 spam lol.