I'm not sure how to approach this match-up. Sturmpanther told me the following:
Sturmpanther: get 2 pio, get 3-4 maxims, guarde into t70, 120mm, and t34/85 ggwp
Best thing vs OKW.
I've tried this a few times and its worked 25% of the time. Once OKW starts doing their campy bullshit, I cant seem to figure it out.
1) Their infantry support guns seem to be outranging my expensive 120mm mortar.
2) My guards are quickly suppressed by stupid flak HT.
3) *Meanwhile* "Oh great, theres a flak gun covering the fuel and my 2 120mm mortars don't do a god damn thing against it in terms of damage. Its like a bofors for OKW.
When sturm gave me that advice, I was just trying to get started with SU so maybe I've grown out of it? I don't have a good breadth of understanding of the soviets so i'm not sure how to counter the issues that i've mentioned above.