The Game has sold 3.5 million copies as of February 2015. ARMA 2: Operation Arrowhead includes three new multiplayer maps, new vehicles and equipment, new factions, along with a new campaign. ARMA 2 Operation Arrowhead Full PC Game OverviewĪRMA 2 Operation Arrowhead Download Free Full Game is a standalone expansion pack to Bohemia Interactive's tactical shooter MilSim, ARMA 2.