A little warning about v1.12 update:
The Ki-43-III Ko crashes my IL-2 when I try to open radiators. The fix for that issue is to use older v1.10 version of classfile A9D16F6854DBD6B2
Also the J2M5 Kai has gunsight alignment issues that are now fixed for the japanese version but not for other countries. Also, that was fixed by changing the shooting direction of guns, not by fixing the cockpit, and thus there is now a separate version for AI use with normal shooting direction. You can apply the gunsight alignment fix for other countries by copying the cannon hook locations in WingRIn_D0 and WingLIn_D0 meshes from the (ja) files to (Multi1) files.
Don't add the Ki-44 entries to your air.ini yet, those planes have java codes in v1.12 update and skins in the skinpack, but 3D files and FM (Ki-44-II.fmd) are still missing. Thus they aren't released yet, but have accidentally got their java and entries to the update. Perhaps they will be released soon when they are finished and tested. I'll update the first post when something significant, like Ki-44 is released.