Read up on what they are doing on a KAF strag on AA1940 Pacific. I am merely suggesting to couple that with a Germany faking sealion and attacking the USA mainland with 20+ units the same turn Japan is attacking the USA mainland with 20+ units and 20+ planes.
The trick to this, is to go for Gibraltar G2, or sometimes G3, and feign like you are going into the med. The americans sometimes don’t pay attention and forget that you can reach washington from Gibraltar. then BOOM you get to land in EUS and CUS. and they are done. So long as the Canadians can’t liberate them…
Its not a matter of quickly taking over america. If the US is 100% devoted to building units to defend against Japan, the Germans should finish off Russia.
And really, if japan can just place 1 more unit in alaska than the US can build, eventually…
All that is needed to destroy the RN is the Luftwaffe for one turn when they do not have that much else to do. The Germans losses are limited to a few subs and a plane or two. It is a bit extreme but i understand why it might be needed for balance.