You can't have all those things in 2v2.
U wont have IL2 if u go Shock rifle frontline and Guard motor pool.Or they can go Guard rifle combine arms, but then u wont see t-34-85. Problem is there are many good commanders with guards/shocks and callins, so it's hard to guess "will I get hit by t34-85 or il2"
So in the end its only choosing between il2 and t34-85, rest I mentioned before is easy to have in 2v2.