Halo 3 is the third game in the Halo Trilogy and provides the thrilling conclusion to the events begun in "Halo: Combat Evolved." Halo 3 picks up where "Halo 2" left off.

Structurally, the campaign is very similar to the first two Halo games; much of the game consists of first-person shooter (FPS) “run-and-gun” action, with some lengthy segments involving vehicles thrown in for good measure. Up to four players can play through the campaign, either on the...