The Bismarck operation is scripted in GWX. I tried to reach the area once, but I got there a little too late...I did spot a task force consisting of a carrier and a BB that just finished off Bismarck.
I was able to sink the carrier, but the escorts harrassed me too such an extent that I had to let the BB go.
Have a look in the GWX manual...major naval operations do take place...it's great fun!