I don't believe in such fairy tales of getting one Tiger and 2 Panthers in one game by one player. Not in 2v2s which I play the most. I saw soviet players getting at least 4 T34/85 in many games and while using Guard Motor I fielded many times at least 4 85s.
Maybe the 4v4 meta will be different, but 4v4 = zero interest for me.
You said the Soviet player can field 6 T34/85s when you could field one Tiger. If THAT was the case you had been outplayed severely, as he has had access to a lot of fuel and excess manpower.
I brought up the two panthers scenario, to illustrate what you COULD have done, if you were NOT completely outplayed and is sitting on a lot of resources, equal to the resources the Soviet player who fielded SIC T34/85s.
So either you didn't read what I said or you are intentionally diverting.