Sharks

Sharks are a unique enemy encountered in the Call of Duty: Ghosts level "Into the Deep".

A group of sharks is first encountered early on in the level when Keegan and Logan begin their mission to sink the Federation ship. Keegan instructs Logan to stay clear of them; if Logan fails to heed this warning or shoots at the sharks, a shark will attack and kill him instantly (although it is possible to kill the first shark you encounter).

Later in the mission, after destroying the ship, Keegan and Logan make their way through a shipwreck where they encounter four more sharks along with the bodies of Federation diver (presumably killed by the predators). Since the sharks are between the divers and the exit, Keegan and Logan must swim past the sharks when they have moved away in order to escape.