Operation Arrowhead is a standalone expansion that takes Bohemia Interactive's shooter ArmA II to a brand-new conflict set in the fictional "Green Sea Region" of central Asia. Players can assume a variety of roles, from infantryman to fighter pilot, and three new game maps provide urban, desert, and mountainous terrain for both single- and multiplayer action. There are a variety of factions to join, including the U.S. Army, the United Nations, and the fictional Takistani Army; and Operation Arrowhead includes over 300 new features, such as detachable backpacks, thermal imaging, and unmanned aerial vehicles. ~ Christopher Brown, All Game Guide