… I can’t really tell what to do with the Allies at this point :-D
I just tried instead of Karelia to push directly with the Germans for a G4 Caucasus capture, as Cow suggested on another thread, and it’s a pain to stop.
R1 fighter to Egypt is solid but at the expense of Germans taking Caucasus on G1 or spend nearly all your tanks on Ukraine. But if you have a strong German push you risk being overstretched with the Soviets because you’ll have 4 attacks to make R2 and 3 of those will be countered (Karelia, Ukraine, Belorussia) and the units destroyed.
One possible option for UK/US is to perform the SZ37 UK attack and invade Solomon Islands with the US forces but buy everything for the Atlantic on US1. If the SZ37 attack is successful then the Allies briefly reach naval parity with Japan but that will change quickly. But this way you’ll have two fleets, both capable of having some effect.