R1 Purchase 1 FGT, 2 ARM, 1 ART. Attack Bellorus with 3 INF 2 FGT. Attack W.Russia with 2 Archangel INF, Moscow INF, Both ART, and Moscow and Karelia ARM. Caucasus troops stay put and fighters land there. If necessary transfer some INF from Caucasus to W. Russia for defense. The 2 INF that can step forward into the Caucasus where placement is made. This gives Russia 28 IPCs for R2 and should be enough defense to keep Germany at bay or make things VERY costly.
R2 Purchase 1 FGT 6 INF. From this point on I start to harass Germany by taking what I can with INF and FGT. I continue to purchase 1 FGT and INF until R4 and maintain trading territories with Germany with Infantry only. At 6 fighters this gives 2 fighters per territory of the 3 normally in dispute. From this point more ARM can begin to be purchased although generally around this time I have already started a drive toward Berlin.
Russia begins the game with a fair amount of hardware and a ton of infantry. Russia CANNOT afford to trade hardware with Germany. I do not place Russian tanks on the frontline unless I am sure they will not be destroyed which is generally a drive to Berlin. The purpose of this drive is not to take Berlin but kill Germans. Russia is quite happy with no troops between Moscow and Berlin and Germany is not. Russia does not have to take Germany, just hold out until help arrives for the kill. Germany on the other hand basically HAS to take Moscow and before help can arrive.