Russia would build mostly men. Would not abandon Karelia.
UK would push out from egypt into Libya and move TJ and India forces into persia. Also, build up fleet typically in SZ 2 ending with 3 transports, maybe 4. Land 2 figs in Kar and land egypt fig into Cauc.
US would purchase 2 bombers, plus men/armor to start LA shuck and move pacific fleet toward Atlantic.
On turn 2
Russia moves 2-3 inf into persia to avoid japan landing while holding on and building mostly inf.
with UK i would take Norway/finland and land in Karelia. Move Figs as needed to defend russia, move Persia forces into cauc if needed, or leave them there to hold Japan. Play with african forces as desired.
with US begin the SBR campain, build more trannies and DDs if needed to cover trannie fleet.
On turn 3
Ditto with Russia/UK
US lands in algeria, sets up to buy more trannies and stockpile them to threaten Italy and/or France. Sink I fleet when available.
At this point G is down bit time in income from finland/norwary/africa/4+ SBRs, Italy is done as she must defend, and Russia should be fine. Meanwhile Italy and france are threatened, and the UK has a large stack in Karelia.