CoH is not a 100% historically accurate series, but this is generally just for gameplay reasons, which is entirely understandable. Dispensation should be made for the benefit of gameplay/balance, which is why MGs firing at point blank range don't instantaneously kill infantry squads, and why range in general is severely reduced from what is "realistic".
The difference is that they have thus far stuck to using weapons/vehicles/etc that actually fought during the war, there's no balance argument for adding fantasy vehicles like the BP when somewhat analogous vehicles WERE used that could be used in its place.
I don't think there's been any argument for the inclusion of the BP other than "I think it is cool", which I really don't think has the same weight as "It is entirely and unexplainably anachronistic and shouldn't really be in the game"
The argument against the BP isnt that it wasn't used in Italy, or in certain battles in which it is shown to feature in the game... but that it literally was never once used in combat during the entire war.
You could well argue that the AK-47 wouldn't really be too much of a problem to be in the game, since it started development in 1945. How far post-war would you like to go before you finally would agree that something is too far out of scope?
SO is soviet UKF and AEF fighting on the same ground, it's fantasy, but could have happened altought I GET YOUR POINT , I just dont buy it that's all. We can just have different opinions man in the end it is just a game.