I think there are too many added bits.
I voted ‘no’ on the understanding that ALL OTHER THINGS were equal. As in the war did start in June 1941 and continued pretty much as it did in the east anyway. The vast bulk of the Wehrmacht turned east in 1941. Easily enough to do the job (on paper).
The Luftwaffe too contributed the great majority of its men and machines to the effort. And as we know - for months the Russians dissolved under a hail of German fire and steel. A closely related question is - could the Germans have won in 1941 while at war with the UK? The answer is probably (in terms of capturing moscow) yes.
But as has already been pointed out - capturing a capital is far from (outside of boardgames) winning a war. This is partly why IMO you should be able to continue placing units in A&A as long as you have factories - irrespective of capitals. Though I realise that would potentially make the game utterly different - if not infinite!
Napoleon captured Moscow. He lost the war. Russia with her tens of millions of people would have been almost impossible to suppress entirely - partisan activity remained high even despite brutal SS action. An obvious tactic to limit partisan action would have been the demarcation of the great Reich in protectorates with self-government, but that would be far too liberal for the Nazis. As has been said before though - such a move could have enabled Germany to quickly gain economically from the Ukraine and other productive areas - and with teh supported of their new ex-soviet ‘citizens’ solidify their new border with the new (much reduced) USSR.
But back to my point at the beginning - all else being equal - I think the German war in Russia was mismanaged which is why they lost it - and those mistakes - based on racial hatred (death squads, and subjugation of ‘inferior’ slavic people) and political ego (obsession with Leningrad & Stalingrad) would have been made anyway. Eventually leading to the loss of the war. By the time the troops arrived at Moscow they were exhausted and their machines were worn out. One thing not covered in A&A - just how worn out a tank is when in one flick of your hand you ‘blitz’ it the equivalent of 1000 miles over (at best) shoddy roads.
Also - I have to say that my feelings about Nazi evil are this:
The Nazis were evil. People who supported the movement, who had read Mein Kampf and had seen jews and other ‘disappear’ from their neighbourhoods knew what the tennets of the movement were -and celebrated war as the ultimate expression of a race’s struggle for survival. The ideology was evil. People who perpetrated it, and allowed it to go on were doing evil.
BUT
Not all Germans were nazis. Though in one way or another most Germans contributed to the war effort because it was an irresistable force in their country. Many in the Wehrmacht retained a centuries old Prussian tradition of loyalty to the state and its leader, and considered themselves non-nazis in that they were non-political.
What I think is the uncomfortable truth though - is that many (if not most) Germans were Nazis - and had they won, they wouldn’t all be denying it. The interesting question that this raises (another thread entirely) is - could this not have happened anywhere? Just how much evil is there in all of us - ready to come out when the conditions seem right.
My grandmother refused to teach Eugenics at school. In England. In the 50s.