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At the Ark, the Gravemind strikes an uneasy truce with both Master Chief and the Arbiter, helping them cut down the Prophet of Truth and even manipulating Truth's own infection to seal his fate. The moment the shared goal is achieved, though, the Gravemind turns on its erstwhile allies immediately, forcing the two to fight their way clear before it can finish what it started.
Halo 3's multiplayer wasn't just a launch-week phenomenon. By March 2009, more than one billion online matches had been played across the game, and it had gone on to sell over 14.5 million copies in total, making it one of the best-selling titles of its console generation.
The name of the Flood's central intelligence wasn't lifted from any existing mythology, it was coined by Bungie staff writer Jaime Griesemer specifically for the character. The Gravemind is voiced throughout the trilogy by actor Dee Bradley Baker, known for his extensive voice work across animation and games.
Rather than lean on gameplay footage, Halo 3's centerpiece 'Believe' campaign built a physical diorama over 1,200 square feet in size, a miniature war memorial populated with hundreds of hand-sculpted human and Covenant figures at one-twelfth scale. Fans could pan across the entire model on a dedicated website, and the ad series went on to win gold at Cannes Lions the following year.
