The year is 1944. General Klaue is a top-ranking German scientist assigned with the expeditionary task of creating biological weaponry, which may be able to changed the tide of the war for Allied forces.
He uses the Battleship Enigma as his base of operations in the Atlantic. The Battleship, though small by Battleship standards, has a very advanced Radar Jamming facility for its time, Massive main guns and very good Anti-Aircraft protection. The ship was not meant to see combat, but is, nevertheless, a serious threat to allied shipping, if there's an engagement.
The ship is Docked in a top secret area, in uncharted seas. Should the need arise, Klaue has serious firepower at his disposal.

The ship also features General Klaue's requirements of a science laboratory, protection from the Allies, and a top secret payload....