I am playing a complete game scenario with the U.S.S.R. I know that I am supposed to get my ass kicked by Germany for a while. Then I regain my strength, over power them, and wim the war. However, German is beating me pretty badly. It's now winter '41 and they don't look like they're slowing down. I am trying to stall them to the best of my ability. I have created two fronts, one around Moscow and one around Stalingrad in hopes of dividing their forces. The new units that I am creating are being placed in the center of the country away from the front lines. It is my hope that the Germans will be slowed down, then I can attack down the middle and force them back. It is my first time playing as USSR, what are some proven strategies for beating back the Germans? Should I continue to just build infantry or should I build more powerful units?