This is actually part of a larger plan. As I’ve emphasized above. Save London by bringing the US fleet into the Atlantic. Secure the Atlantic by building a British navy that is backed by the Americans. Thus insisting early on that Germany build an Atlantic wall. Save Moscow by preserving air power and positioning it to be in Russia t5, possibly including a fleet of American bombers that can either act as fodder or better blitz a column of straggling armour or mechs.
Note there is a play like progression. The axis attempt for London is normally t3. check. They do that by dominating the Atlantic. check. They turn toward Moscow. t5 or 6. check.
This stuff in the Med takes place because of initial set up. My hope is for parity. I am trying to scratch my way back to even and to not needing a bid by saving English units, making the Axis pay the higher price, stay wealthy and play for good position t5.
I think Italy will not be able to keep up with the production from South Africa and India and Persia. Having secured North Africa by t3 or 4, that material then turns East. The ground forces to fight the Japanese. The air to support the Russians.
These strategies are obviously a Germany first model. I do think, given the tip toward the Axis inherent in the game, the Americans have to go 100% the first four round in one theatre or the other.
If Moscow is defended, the planes there then become what I call super tanks. They will, can and must engage small forces or important enemy armies to slow the Japanese advance.