Beginning 1943 Brisbane on my computer does not crash. I have a list of S-18 Sboat, S-42 Sboat, Salmon, Sargo, Gato, Gar, Porpoise and Narwhal. Were you using a mod prior to using FotRSU? or maybe Stock game, and had Saved Games from either? If so, try deleting the "C:\Users \Username \ Documents \ SH4" folder, and try starting again. All of your screen and other settings will re-set back to the default settings. Let us know what happens please.