From GameWatcher: “I must say, for all that I know of Warhammers grimdark fantasy world, I never expected to see merry pirate-y sea shanties in one of its games. Yet thats what the Vampire Counts DLC trailer promised, and didnt delivered, but we did get a whole lot of pirate themed things.”
Source: N4G PC Total War: WARHAMMER II – Curse of the Vampire Coast Review – GameWatcher