Yes, Bismarck Sea was a Trafalgar for the type...
it was pretty thin and weak for the ETO but against the paper-thin Japanese Zero's the Boston/Havoc was absolutely evil. I believe the final iteration had four cheek mounted 50's plus 50's in the wing, if I'm not mistaken. Then to add to the hijinx, the bombardier had a flexible 50 in the nose.
The Aussies and Chinese swore by them. As did the Brits in the desert. A very underrated type. Then again, the top allied ace (Kozedhub(sp)) flew a P-39 Aerocobra at one time. Just goes to show...