Has anyone tried going hard after Russia with all 3 axis powers? Germany could stall Britain using available subs and air and take the +5 bonus away from Russia. They could do the Romania factory and take Leningrad on turn 3 followed by Stalingrad on turn 4 or 5. Meanwhile, Japan could push into Siberia, building an air base in Manchuria and eliminating the infantry stack on turn 2. They could use their navy to force America into the Pacific while pressing towards Moscow through both Russia and China. By the time America could make landings in Europe, Russia would be penned in and unable to pose a threat, allowing Germany to focus on defending itself with a fairly large economy. If America goes after Japan, Moscow falls earlier.