Balance: I found some history inaccuracy on Japanese army in 1939.
1: I suggest to replace regular infantry's type 99 with type 38 because type 99 wasn't issued largely to the troop in 1939, but keep type 99 for Elite troop like SNLF will be great.

2: Kamikaze has type 100 smg which is wrong, I suggest to replace them with TYPE 2 smg, also give SNLF some type 2 smg will be good too. (they are in game, and type 2 is actually used by Japanese in early war.) Some crewman from tanks also have type 100, better to replace them with Sig 1920.

3: Replace Chinese regular infantry and assault infantry's rifle with TypeZhongzheng (also in game, but only issued to stormtroop in 1944-1945), which is a more common rifle than 98k. I suggest to give 98k to elite units like stormtroop.

Bugs: 1: Japanese type 96 AA gun doesnt have sound.
2: US M36B and M36 Slugger have wrong armor value, on the specification page, front armor for m36b1 is 63, but on the left bottom vehicle panel it shows 127 is the thickest part....but the armor still feels like 63mm because a 75mm m3 can easily destory it....same thing for the M36 Slugger, both tanks suppose to have 127mm armor, but in game they feel very fragile.

That's all I found right now, thanks for the great mod!