As it's an EC game, which is only possible if the French extend the Maginot Line in the 1930s, I'm assuming that Stalin, fearing the worst, would have built up the Red Army earlier than he did historically. So the Russians do get several more (strong) units than in a conventional game but facing the Germans, Finns, Poles, Rumanians, Hungarians, Bulgarians and assorted Slovaks and Ukrainian guerillas, they probably need them.
It does produce a desperate struggle in the East. In my game against Pelle the Axis took both Leningrad and Stalingrad but I just couldn't get to Moscow and now (March 1942) the tide has turned horribly, with the Red Army 'liberating' Rumania and the French in Milan. Just got to hold out for another three years...