My thoughts of the subject of beating the Soviets after Chungking:
- The correct move for the entire Chinese Army is to run on Dec 7th for Burma, and thence India if Burma falls. Burma/India has supply, China does not.
- The IJA China Expeditionary Army needs to move to destroy as much of the Chinese Army as possible, following it to Burma as necessary.
- The Kwantung Army needs to support the China Expeditionary Army to the fullest extent possible in the capture of China.
- Afterwards, the best elements of both the CEA and Kwantung Army need to be picked off for deployment against the Allied forces in the Pacific.
- The IJA is vastly outnumbered throughout most of the game: there's little value on bringing more on.
It still floors me that the Soviets have such huge forces available in the Far East at a time when historically they were in a desperate fight for survival against the Germans.
The issue with the Soviets was never manpower (at least not until the very late war) but equipment shortages. The Soviet forces in the East are all at near full TOE, so it makes sense that there's manpower to funnel in to the units.
However, it's mainly a balance decision. If the Soviets had zero or very low levels of replacements, then it would be the meta move for the IJA to immediately attack the Soviets on Dec 7th to start a war of attrition that they'd be certain to win before '45. Then you'd have the usual tears on the forum about ahistorical play.