World War II Mediterranean Naval, including subs, preferably in a sim mod, but I'll take RTS, so long as the individual ships and their respective abilities are portrayed.
Oh, on PC not a board game. I tried a board game version with the Europa series and it's "combine these three modules plus the experimental naval rules and oh by the way make your own counters" and I loved it, but alas, it took two years and sixteen players - including replacements! - to play. Once.
" ... it is only those who have never heard a shot, never heard the shriek and groans of the wounded and lacerated ... that cry aloud for more blood, more vengeance, more desolation"