We are playing a game now with me as Japan. Originally I was planning on eliminating China. I also took HI round 1. I thought I was doing pretty good, but China proved to be pretty tough. The flying tigers flew north and most of their builds were up there. They would keep 1 infantry between the flying tigers, about 4 infantry and a few artillery. I could not blitz and attack these units and I was not going to trade aircraft for the infantry. I would take the adjacent territory and they would counter attack with all the units defending the flying tigers and normally take the territory back. There new builds were either a single infantry to prevent blitzing or defense of the flying tigers.
I had a lot of trouble closing the burma road since most of my forces were trying to kill China in the North.
I think next time I will build an IC some place close to India where the Chinese cannot attack (Burma?) and basically ignore the Chinese.
Currently I am backed up to the IC I built in Shanghai and most of my money is going to ships and fighters to try and discourage the US (which has become a monster) from invading the homeland. I feel the Pacific is lost, but I am trying to make things difficult to take the pressure off Germany and Italy. I am almost ready to surrender to the allies because the US and UK control the Med at this point.