The Russian set up for this game is pretty banal. Beside the required placements, most of the Army is deployed to take Eastern Europe. I also fortify Leningrad and I place two fleets there to threaten German interests. One fleet goes to Baku to supply Odessa and Sevastopol.
Russia play is a balance of patience and preparation. Against that is opportunity. If the Germans forget to garrison a minor ally, Russia has to be ready to pounce. Otherwise it’s mostly just deciding when to build and wait for the inevitable onslaught. Against the AI, it almost always comes the turn after Germany takes Yugoslavia.