yeah but everyone who knew much about the weapons was Jewish and had fled to the west or rather low on the totem pole
the Germans never had a serious N weapons programme
As for the Red Army I don't want to take anything away from everyone (including members of my family) who fought and died in W Europe but the once the Russians started west in 1943 they weren't going to be stopped
It would have taken longer and cost more deaths but they would have got there in the end. The best German units were deployed on the Eastern Front and they were being bled dry
My late mother, who was as anti-Red as it was possible to be always said she felt a great sense of relief when Hitler invaded Russia - she knew the war would be won one day, some day