Hey hey,
i just tested the other BB got the same result, destroyed by a hit in the engine.
after that i played carreer with Bismarck and attacked a Harbor sunk some Ships but then i got a hit in my engine room and got a instant deathscreen :P
here are some screens.
maybe i was to near on the harbor i dont know, but it's so frustrating get one killed and doesnt see the own ship sinking
but still this is the best warship right now out there! Maybe you get in touch with Chinese U-47 and build a Warship mod together, if you have the time, that would be so cool.
greets a lovely fan