@KurtGodel7 Asking Google AI "How many men of the Soviet-equipped divisions did China field in 1941?", the answer is
Between 1937 and 1941, Soviet military aid provided under the Sino-Soviet Non-Aggression Pact and transported via the Gansu-Xinjiang Highway enabled China to form 15 Soviet-equipped divisions. Based on the typical paper strength of the Chinese Nationalist Central Army infantry divisions at the time (ranging from 8,000 to 11,000 men per division), this represented a force of approximately 120,000 to 165,000 men.
Key Facts About China's Soviet-Equipped Force
• Strategic Role: Rather than being sent straight to the front lines, these 15 divisions were largely held in reserve by the Nationalist government for future strategic counteroffensives.
• Equipment Scope: The Soviet Union supplied roughly 110,000 rifles, 14,000 machine guns, 1,600 artillery pieces, 82 T-26 tanks, and thousands of ZIS-5 military transport trucks to outfit these formations.
• The Mechanized Elite: This aid famously established China's first fully mechanized unit, the 200th Division, which incorporated Soviet armor and saw action in major engagements like the Battle of Kunlun Pass.
• The 1941 Cutoff: This military pipeline officially halted in April 1941 following the signing of the Soviet–Japanese Neutrality Pact, after which China increasingly relied on American Lend-Lease aid.
I guess this could be somewhat represented by China starting with a few infantry units but unable to build any more of them.
More complex would be accounting for lend-lease or whatever other kind of supply or even fully internally created infantry (as opposed to conscripts, which would be infantry units armed with very little more than just their rifles), possibly to represent their existant albeit very scarce (a few tens of thousands) heavy and light machine-guns production, but a proper infantry unit is supposed also to have a good quantity of infantry mortars (unless there are infantry mortars in the game as units), and I've no idea about domestic Chinese mortars production.