Machinima

Machinima is a type of CGI filming style, using pre-rendered models from video games. Red vs Blue is a popular machinima made using using all three Halo games.

Machinima in Halo: Combat Evolved, such as Red vs Blue (seasons 1, 2, and 3), was filmed using the pistol and panning using editing software. In the Halo 2 Saga, it was filmed using the gun-drop glitch, which left only the the HUD to be edited out in post-production. The Theater lobby, or saved films feature in Halo 3 presented a large advantage to machinima makers.

Trivia

 * Digital Ph33r makes many popular Halo 3 machinima. Some of which include Hard Justice, Arby 'n' The Chief, and Deus Ex Machina.
 * The machinima Pregame Lobby uses many Halo 3 maps in it's episodes. The main one being Standoff.
 * A popular machinima called Forges shows many good Halo 3 Forges.
 * In Red vs Blue they name their tank Sheila.