Fall of the Rising sun, completely excellent. Follow the directions to the T to install it properly.
IJN if you want to play the Japanese! Also excellent. I think this is the only mod playing on the opposite side. Very interesting.
https://www.subsim.com/radioroom/sho...d.php?t=137761 Don't mix the mod saves. Use separate installations of SH4 in a non standard folder. I've found that Fall of the rising sun works fine on my D drive in the steam program foldersx86 folder however. According to some, it won't work on the standard C: installation folder.