I didn’t play a lot of games since the release of G40. Attacking Russia from G2 looks good but by doing this, UK would have a much easier time putting pressure on Italy with it’s IC in South Africa.
Often, after taking Egypt, Italy barely have time to lick it’s wounds before US kicks in and the struggle with UK would be even harder with this strategy.
A major Skoda IC in Slovakia is a big waste of IPCs in my opinon because after turn two will be around 46 IPC, not enough for maximizing your two ICs in Germany, espacialy if you keep buying navy.
Why not build up until G4 with a mix of slow units for the front lines and a mix of mech/tanks which could be released in Western Ukraine after an I3 can opener?
This way, you could get the 4 IPV for Yugo and Greece and benefit two more turns from your 5 IPC NO for being at peace with the Soviets while they would not get their two turns 5 IPC NO for being at war with you. All in all, it gives the Axis a 28 IPC advantage , 58 if you cancel the Skoda IC and a much stronger attacking force to enter Russia.
Just my two cents but I only played three G40 games so far.