I rented this movie over the weekend, and was enjoying it, when I saw the seen in the flooded diving bay. I noticed that many of the surviving crew members were carrying shotguns. I also saw that they really did not get any extra cartridges. Watch in the scene where the doctor shoots at the strobe light, and then everyone else does... I did not see anyone reload his or her weapon, and on top of this, each of them fires a least six more shots at the beast, from a weapon that carries half of that... movies with this weapon seem to do that alot.