I presume Patton taking Moscow is a joke. The West didn't have the land forces to do anything like that; it would have required nuclear weapons in which case the cred would not have redounded to Patton. I believe he was too erratic a personality to be a military governor or to have played a major political role. However, could he have ended up effectively leading troops in Korea, though that was not primarily a tank war? MacArthur would not have tolerated him in Korea, but would he have been brought in after Mac was fired? I think Truman and the top military brass were fed up with warfare by ego at that point, and would have used someone else. Maybe Ike (who knew Dien Bien Phu was a death trap from the moment the French sent the troops there) would have sent him to Vietnam as an advisor? But if the French wouldn't listen to the President of the United States (the supreme commander of their own armies during World War Two), I doubt they would have listened to Patton. And his unauthorized public pillorying of their stupidity would probably have created an international incident. (Ike pilloried them, but waited to do so until he wrote his Presidential memoirs.)