I am convinced that SH3 (+GWX3+mods) remains the best U-boat sim ever made. Therefore deserves better crew models.
SH4 v1.5 OM is a great U-boat sim in aspect of graphics, crew managment and sea water environment. But there is no adequate U-boat boyancy and the rest of the environment (e.g. sunset) is quite excessive. I agree though that deserves more attention from the moders.
Ps. I wonder SS, why there is only one Mega-mod for SH4 v1.5?