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I'd like to ask how the following scenario would play out.

First assumption - The Bismarck does not sortie in 1940. She stays in port to wait the completion of her sister ship Tirpitz.

Second assumption - The Tirpitz is completed, the raid on St. Nazaire to destroy the drydock there she is to use fails as do numerous attempts to sink her.

In May, 1942 the Bismarck, the Tirpitz, the Scharnhorst, the Gniesenau, and the Admiral Hipper, along with a covering force of light cruisers and submarines enters the North Atlantic to wreck havoc in the Allied shipping lanes. Hitler has decided to cripple the British war effort in one full swoop.

How successful is this and do we get a grand naval battle?
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