In order to complete their "Great Journey", the Covenant must activate a Halo installation.
This is part of the Great Journey, which is a religious series of events that the Covenant heavily believes in. As Arbiter, he must conduct missions for the prophets that are hopeless and suicidal and die as a martyr for his race. The Prophet's offered him the role of Arbiter, the highest honor for an Elite during a time of need. The Elite branded in the opening cutscene was supposed to be executed however, rather than have him slain outright, the Prophets of Truth and Mercy made the decision to give him a chance to regain his lost honor and serve the Covenant again. After the Scarab is destroyed, the Covenant ship makes a Slipspace jump which destroys the city, and the UNSC ship, In Amber Clad, with the Master Chief aboard, gets swept up in the warp field in a desperate attempt to follow it. While in the city, Master Chief destroys a Scarab. He and the Marines then set out to the city of New Mombasa as a sole surviving Covenant ship landed on Earth. After a while, Master Chief finds the bomb and uses it to destroy a Covenant assault-carrier.
Shortly after the Covenant arrive, a bomb is set on the station. John-117 begins on Cairo Station, one of the three hundred space defense platforms orbiting Earth. The Covenant fleet that destroyed Reach, as well as the one which failed to save Alpha Halo. It is revealed that he is the former Supreme Commander of Fleet of Particular Justice. A constrained and armorless Supreme Commander is being branded with the Mark of Shame. For the first time, we learn a little bit about the society of the Covenant. Before the game begins, we catch a small glimpse of the Covenant via a cutscene.
The game begins some mounths after the events of Halo: Combat Evolved. The game further develops the struggle between the United Nations Space Command and the Covenant Empire.
This game was the best sealler of the Xbox console as well for all microsoft games. It is the sequel to the game Halo: Combat Evolved and the prequel of Halo 3(september 2007), and features a newly built graphics engine with the addition of new elements to the game. Halo 2 is a first-person shooter developed by Bungie Studios for the Xbox video game console and is backwards-compatible with Xbox 360.