>>18077690
>Franz halder holds France
>Reinforce the army group south between 1942-1943
>even if Model seethes while retreating from the worthless salients
>Improve infrastructure from the Kiev to Stalingrad
>Focus a period of bomber raids specifically to the railroads to the east, focusing on incoming trains towards Moscow
The soviets would break like twigs from starvation and a failure of the planetary offendives
Since they couldn't feed their core by means of archangel (which you also harrass by means of Tirpitz and a more prominent Submarine force) or Vladivostok(japanese hostility to the Americans would put an end to this, especially after they know the Russians can't really fight them)
The only route remaining would be Persia through central asia, a route which still depends on a few railroads you could constantly bomb
TL;DR
>Almost exclusively focus on the Caucasus campaign in 1942 alas krauts are retards and take worthless land with great effort and tactical prowess instead like in 1918