The Unnamed Ship Master of the Rapturous Arc was a Sangheili member of the Covenant Navy (specifically, the Second Fleet of Homogeneous Clarity). He was the Shipmaster of the destroyer Rapturous Arc at the time of the Battle of Installation 05. His ship was overrun by the Flood escaping from the Installation, and was subsequently destroyed by all ships faithful to the Second Fleet, at the command of Voro 'Mantakree, the shipmaster of the Reverence-class cruiser Incorruptible.