Naval Ops: Warship Gunner, released in Japan as Kurogane no Houkou 2: Warship Gunner (鋼鉄の咆哮2 ウォーシップガンナー) is a vehicle simulation game released in 2003 for the PlayStation 2. It is an entry in the larger Kurogane no Houkou series, which also includes the games Naval Ops: Commander and Naval Ops: Warship Gunner 2.The game is a one-player simulation of naval combat, in which the player commands an individual ship.