Everything about it screams "BERSERK!!!!!"
Black "Guts" with guns, and firing steel knuckles (canon is cooler, but silver bullets ain't too shabby either), killing man-eating monsters, while surviving racism and lynching.
What more can you want?!
Oh, duh, of course a girl that's gonna drive him crazy (in more than one way), but something tells me that it's still to come.