First off get a map mod. The map that comes with the game is greatly defficient. You need to be able to see clearly the river lines and the size of rivers.
The Axis has a long ways to go. It is almost an impossible task. Buy your time and wear down your opponent.
The Soviet Navy is a supply hog. Use it only when needed.
Learn to blow up bridges with your airforce (bombing). The Soviet airforce must be built up first. You will easily eventually to decimate the German Air Force (a bit unhistoric in my opinion). Keep AA around your impotant bridges. Be sure to blow bridges that you pull back from.
Massed artillery, and I mean massed, follwed by ground attacks can decimate a German infantry division in one turn. Problem is is that you need time to set up to get it right. In the early game the Soviets will be doing a lot of fallbacks and retreats.
Look at the map from the perspectives of supply and railroads.
Hold Svoboda and Kamensk. These are important railheads. A soon as you lose both of these any armies in the center of the map will be virtually unsupplied. That is, the center of your forces cannot hold a position south of Voronez and north of Rostov with the rail lines cut. See Map. I made maps, but I don not know how to load them up.
