Halo 3 ODST
Halo 3: ODST is a first person shooter side story set in the Halo universe. The events in Halo 3 ODSt take place in New Mombasa in the aftermath of the slipspace rupture in Halo 2 that destrys the city. Although in Halo 2 the Prophet of Regret escapes to Instlallation 5 followed by In Amber Clad with Spartan 117 aboard, many Covenant forces were left behind battling the UNSC for control of Earth. Initially Halo 3: ODST was supposed to be additional downloadable content to Halo 3. However the game was expanded and combined with a multiplayer map pack for Halo 3 and sold as a stand alone game.
The main characters in Halo3: ODST are a team of ODST's (ODST stands for Orbital Drop Shock Troopers and they are the special forces of the UNSC second only to Spartans in lethality, expertise and prestige). You play as the "Rookie" member of the team. Other characters include the city of New Mombasa's AI called "Virgil" which turns out to be both an AI and a portion of improved intelligence from a rogue Covenant Engineer and the human scientist that has been working with him.
When you are dropped into the city the Covenant have made the landing difficult. You are seperated from your team and you spend much of the game following in the rest of your team's footprints. Led by team leader "Buck" your ODST team eventually meets up with and is co-opted by an ONI agent (ONI stands for Office of Naval Intelligence.. they are the secretive intelligence section of the UNSC) and former acquantance of Buck named Dare.
Dare leads the ODST's on a missin to rescue the scientist and the AI/Engineer Virgil. Just as the ODST's arrive at the location where Virgil is under assault from Covenant forces you (as the Rookie) rejoin the rest of your team and continue on mission to the end of the game.
In the climax the engineer is rescued and the ODST team along with Dare and the Engineer escape in a transport as the events of Halo 3 begin. The Prophet of Truth arrives in the Forerunner ship and the characters watch from the transport as the city of New Mombasa, already in ruins, is completely destroyed by Truth as he begins excavating the portal to the Ark.
Completing the game on the hardest level reveals a cut scene in which your ODST team, still guarding the Engineer one month later are joined by Sergeant Johnson who begins an extensive interrogation of the Engineer.