Arma 2 - Operation Arrowhead - PC Detachable backpacks with equipment, advanced weapon optics, material penetration modeling, remote real-time simulation of Unmanned Arial Vehicles (UAV), freedom of decision and repercussive actions New story campaign for both single player and multiplayer gameplay. Wide range of new tutorials, single scenarios and multiplayer modes Three brand new Central Asia-style large maps including expansive urban, desert and mountainous terrain featuring a fully destructible and interactive environment Multiple factions for all sides including US Army, United Nations, Takistani Army and Guerrillas making a collection of 300+ new units, weapons and vehicles Fully integrates with the original Arma II for unmatched warfare simulation