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 Array
The Ark, also referred to as Installation 00, is located outside the Milky Way galaxy and serves as the construction and control station for the Halo weapon system. It does not share the ringworld geometry of the other installations. During "Halo 3", the Covenant discover a portal on Earth that leads to the Ark and are pursued by the humans and a breakaway faction of Covenant opposed to activating the rings. Gravemind, having hijacked "High Charity", crash-lands on the installation. The remote firing of the rings is halted by Master Chief and the Arbiter. In order to end the threat of the Flood, Master Chief decides to activate Installation 08 under construction in The Ark, the replacement for the Halo that he destroyed in "Halo: Combat Evolved". Unknown to everyone but 343 Guilty Spark, a premature firing would destroy the installation; the monitor attempted to defend 'his' ring but was destroyed by Master Chief, who proceeded to fire the weapon. The firing tears apart the incomplete Halo and severely damages The Ark as Master Chief, Cortana, and the Arbiter try to escape through the Portal, which closes as they enter, leaving Master Chief and Cortana drifting in space while the Arbiter returns to Earth successfully. The Ark appears in other "Halo" novels and the video game "Halo Wars 2".