It looks like no stacking limits.
Suicide armored car assaults across the river serves the purpose of closing the hex side on his side: once you control it, he can't leave the city by that hex side. It means you don't have to keep units outside of Chungking in every direction to prevent his retreat. Press 'W' if you did not already know how to view hex side control. You want those units to all surrender when you take the city - which they inevitably will do. You don't want them running into the woods where you have to spend months harvesting their VPs. I said to use armored car companies because they are largely worthless in actual combat, and are the cheapest to rebuild after being destroyed. Only about 30 devices.
The 600 supply per day is no matter what. That plus any from Ledo (which could be more hundreds) are still not enough to feed the stack - you're right. However, his units will still have
some supply from it. Keep bombing them to make that supply go away.
I didn't mention it, but somebody else did. Bombard with your ground troops every day as well to burn up his supplies.
ORIGINAL: Marshall
supplies in Tokyo are up to speed, as I just hogged up a shipload at that time.
also I distribute my supplies over all of japan, due to industry expansion and airframe expansion for research
i do not like to keep 400.000 in one base only
somehow i just like it spread out more
Understandable, but I asked because only 50000-some supplies at Tokyo threw up all kinds of red flags to me. It's still summer of 1942, but I don't think Tokyo ever even got close to 500K for me, and I pull 11k+ supplies to all industry centers for repairs as well as 100K stockpiles at a few other bases for convoys...
By the way, expect this siege to take the better part of a year. I think I began my last one around the same time as this, and I think I didn't capture until well into 1943 (April or May). You need to plan for that, and you need to ship in a few hundred thousand supply. It's an investment, and once you start you need to see it through to the end or else your huge supply expenditure will have been for nothing. You have to get all of the VPs or it's not worth it.
And of course, once you take Chengtu and Chungking, build them to maximum size to maximize the VP harvest for you. This isn't a bad idea at other bases with a *10 multiplier for you also, but the return is smaller than the hundreds that those 2 bases are worth.