Anthony Mendez is a former Orbital Drop Shock Trooper and current SPARTAN-IV supersoldier of the UNSC Spartan Branch. He served near the end of the Human-Covenant War, starting with the Battle of New Llanelli in 2546. Mendez is beyond proficient in demolitions, infiltration, and close-quarters quarters combat while also capable of basic piloting. Initially serving in the 24th Infantry Regiment of the UNSC Marine Corps, Anthony eventually enlisted as an ODST, later serving as a Bullfrog. During and after the Human-Covenant War, Mendez served alongside several Spartans. It was nearly a decade after the war's end when he was offered the opportunity to become a SPARTAN-IV.