I think that the biggest thing that needs to be changed in Alpha 3 is to either strengthen Italy or weaken Russia. Rather than reward the US with NO’s for its involvement in the Atlantic, I think that the starting placement needs to be adjusted so that Russia’s survival depends on the US opening a front in Western Europe.
For the Italians, I would suggest either combining the Italian fleet into 1 sea zone or modify the Italian air force to give it more punch. As it is, Italy has too few resources to be effective against the Russians and it is never able to stand up to the Americans in the Med.
As for the Russians, I would eliminate the Archangel bonus when at war… as it is, Russia is able to stand against Germany without US involvement. I think that decreasing their bonuses while at war is in order.