The conditions to bring about the American-Russian conflict are present in games like AoD and the Doomsday scenario, although I don't have any experience with those and they seem to be awfully prolonged in the way of despoiling Europe to the point that itself can not suffer a war upon its continent, being as it has no political power and war readiness, if America prolongs confrontation with Rusaia and enacts despoilment for an excess of months if not years.
There are a few key schemes of American involvement that would change the outcome too greatly to provide for that dire indecision following Berlin 1945. Economic steel trade with Japan is a huge factor to change American involvement and alleviate its economic struggle, but that itself provides very different outcomes.
If there are any such thoughts about a democratic revitalization of a defeated undemocratic German state and the rearmament to retake the original belli of the outset of the English involvement, a hegemony of the Anglo-Saxon from the Crown to the Republic, than that could be the avenue of a modification dealing solely with the post Berlin 1945 situation.
"In the second case, where it is not taken seriously, as in the case of Roosevelt, it is not morality at all and is repulsive to honor. Thus morality in politics makes bad politics if taken seriously, and if used cynically, it dishonors him who uses it." - Imperium, Yockey
Great quote for such a mod. The matter is about absolute Anglo-Saxon hegemony of Europe after the defeat of the Germans.