Enjoy this run-and-gun small size map There is plenty of content that Call of Duty Modern Warfare 3 has to offer, get your hands on a part of it with Call of Duty: Modern Warfare 3 Collection 4! Call of Duty: Modern Warfare 3 - Collection 4: Final Assault (DLC) (MAC OS X) Steam Key GLOBAL Collection 4 is a DLC and requires the base game to play..