In my current game my Russian R1 purchase was 1Bomber, 1 Armor, 1 Infantry, save 1 dollar. As we have yet to complete the first round I don’t know how well it will work. I prefer to use air assets with Russia anyway as they land behind the lines and do not become ireplacable casualties like armor.
As far as a Russian AC I have used that before although not on round one. It was an intentional throw away purchase to get the Germans to use their air assets to attack fighters deffending at 4. While I lost a fleet I had no real use for the Germans lost most of their luftwaffe which was my goal.