Master Chief (Halo)
MCPON John-117, or "Master Chief", is a fictional character and the protagonist of the "Halo" fictional universe created by Bungie. Master Chief is a playable character in the series of science fiction first-person shooter video games "", "Halo 2", "Halo 3", "Halo 4", and "". Outside video games, the character appears in books and graphic novels—"", "", "", and ""—and has cameos in other "Halo" media, including "", "", "The Halo Graphic Novel", "Halo Legends" and "".
Halo: The Flood
The Covenant board the "Autumn"; deprived of defensive options, the "Autumn"'s captain, Jacob Keyes, tells the crew to abandon ship. The Master Chief is entrusted with the artificial intelligence Cortana; given the wealth of tactical information the A.I. contains, Keyes cannot allow Cortana to fall into enemy hands. The Master Chief leaves for the surface of Halo in a lifeboat; other soldiers, including a squad of shock troops led by Antonio Silva and his second-in-command, Melissa McKay, land by special drop pods, and take a strategic bluff from the Covenant to use as a base of operations. Captain Keyes is captured by the Covenant, and taken aboard the Covenant cruiser "Truth and Reconciliation"; the Master Chief and a squad of Marines board the "Truth and Reconciliation", rescuing the captain. Keyes has learned that the ringworld they are on has vast significance to the Covenant- they believe that "Halo", as they call the ring, is a weapon of unimaginable power. Escaping from the Covenant cruiser, Keyes gives the Master Chief the mission of finding the Control Room of Halo before the Covenant. The Master Chief and Cortana discover the location of the Control Room, and with the help of some Marines, insert Cortana into Halo's computer network. However, Cortana realizes that the ring is not a weapon as they understood at all- but before the Chief can press her with questions, Cortana tells the Master Chief to find Captain Keyes.