Activision Publishing has announced that Call of Duty: Modern Warfare 3 Content Collection #4 which includes five all-new multiplayer maps, is now available for PC via Steam. Surrounded by mountains, "Gulch" sends combatants into a forgotten mining town with only mine shafts and equipment sheds for cover. The Jersey coast awaits in "Boardwalk", where fun in the sun means facing enemies on the beach. Players must earn their sea legs on "Off shore" and "Decommission", where deadly oceanic oilrigs and a maze of rotting ocean liners provide the perfect setting for shoreline-based combat. Rounding out the collection is a trip to New Orleans' war-torn French Quarter, where "Parish" pits players against one another amidst the city's rubble.