I made the mistake of thinking that I could swim up to a Legendary ship, kill the crew, and take the ship by myself. As it turns out, Legendary ships blast you to smithereens the second you approach their hull. Heh. Btw, after a recent update over Xbox Live, I'm noticing a thorough lack of sharks during my diving explorations. Does anyone know if Ubisoft deliberately removed the sharks, or am I just getting really lucky?