If you haven't looked into this game yet, you might want to. I would say that it's about 25% historically accurate, and about 75% arcade. It's definitely not a sim, and it has a few annoying features, but #%&*$# is it fun. When your sub is being hit by surface fire, or by depth charges, and you hear crewmen screaming, it's unnerving., and to me, very immersive.