Berni. WW2 - German's the weapons of the '50s, GB the '30s. Nah. Too simple
Been discussing your idea with one of my OU BA mates, who did this for his dissertation, and will be doing a WW2 MA while I did WW1. {Oh, and he's a retired RAF wing commander btw, not some manky crusty.}
And we both think it's far too simplistic because we both had modern breakthroughs - them: V2s, both: jets, us: a-bombs, computers and penicillin; all of which would define modern warfare - but we also both had arms that had been slowly evolving since WW1 and before.
So no, basically. :judge: