Thief: Deadly Shadows
The third Thief game has a ghost ship mission in a vessel called Abysmal Gale. Garrett has to find ships manifest to gain information about it's cargo. Unfortunately the ship is infested by zombies. Fortunately Garrett may improve his status with the Hammerites by killing the zombies. There are also items and loot to be had in the ship. The mission diverges from the other missions by not having a briefing or a debriefing as other actual missions do.