Research Skills 1st Assessment

The main story of Halo franchise

Release Date

Halo: CE
Xbox 360
NA November 15, 2001
EU March 14, 2002
JP April 25, 2002
Microsoft Windows
NA September 30, 2003
EU October 10, 2003
Mac OS X
December 3, 2003

Halo 2
Xbox 360
NA November 9, 2004
JP November 11, 2004
EU November 11, 2004
Microsoft Windows
AUS May 17, 2007
NA May 31, 2007
EU June 8, 2007
JP June 21, 2007

Halo 3
Xbox 360
NA September 25, 2007
EU September 26, 2007
JP September 27, 2007


Game story

In the distant past, a powerful race called the Forerunners fought an alien parasite known as the Flood. The Flood, which spread through infestation of sentient life, overran much of the Milky Way Galaxy. One of the races affected was humanity, who came into conflict with the Forerunners. Exhausted by their war and after having explored all other options, the Forerunners conceived a weapon of last resort to combat the Flood, called the Halo Array. Using an installation known as the Ark, they built large ring-shaped megastructures known as Halos. The Halo Array, when activated, would destroy all sentient life in the galaxy – depriving the Flood of their food, after which samples of the lost lifeforms would be reseeded. Delaying as long as they could, the Forerunners activated the rings and disappeared. Tens of thousands of years later, in the 26th century, humanity – under the auspices of the United Nations Space Command, or UNSC – colonize many worlds thanks to the development of faster-than-light “slipspace” travel. Tensions escalate between the older and more stable “Inner Colonies” and the remote “Outer Colonies”, leading to civil war. The UNSC creates an elite group of enhanced supersoldiers, known as Spartans, to suppress the rebellion covertly. In the year 2525, human worlds come under attack by a theocratic alliance of alien races known as the Covenant. The Covenant leadership declares humanity heretics and an affront to their gods – the Forerunners – and begins a holy war of genocide. The Covenant’s superior technology and numbers prove decisive advantages; though effective, the Spartans are too few in number to turn the tide of battle in humanity’s favor.

In 2552, the Covenant arrive at the planet Reach, the UNSC’s last major stronghold beyond Earth, and launch an invasion of the planet. The last Spartans and UNSC military are unable to stop the Covenant from bombarding the planet. Following directives to avoid leading the Covenant to Earth, Cortana, the AI aboard the fleeing UNSC ship Pillar of Autumn, selects random coordinates that lead the ship to a Halo installation. The Covenant follow, damaging the Autumn and leading its crew to wage a guerrilla war on the ring’s surface. The Covenant accidentally release Flood imprisoned on the ring; to nullify the threat, the ring’s AI caretaker, 343 Guilty Spark, enlists the help of the Spartan John-117, or Master Chief, in activating Halo. Cortana reveals that Halo’s activation would mean their own destruction. Master Chief and Cortana instead detonate Autumn‍ ’​s engines, destroying Halo and preventing the escape of the Flood. They return to Earth with a few other human survivors, warning of an impending Covenant attack. The Covenant, unaware of the destructive nature of the rings, attempt to fire another ring, Installation 05, to fulfill their religious prophecy and to do so launch an attack on Earth. Helping the Chief to defend the Earth are Sergeant Avery Johnson and Commander Miranda Keyes. One race in the Covenant, the Elites, learn the truth about the rings and are led by a former Elite Commander named the Arbiter to join forces with humanity to stop the firing of the ring. Though they are successful, the unexpected shutdown of the installation triggers a fail-safe protocol, priming all the rings for firing from the Ark. The Covenant High Prophet of Truth and the remaining loyalist Covenant uncover a portal to the Ark on Earth. A battle rages on Earth between human forces, the Covenant, and a Flood-infected army. Eventually, the Covenant is repulsed and flees through a slipspace portal, and the Flood is purged from Earth, resulting in the devastation of much of Africa.

Chief, Arbiter, Elites, Johnson, Keyes, and U.N.S.C. troops follow Truth through the portal, joined by 343 Guilty Spark, who aids the Chief as he has no function to fulfill after the destruction of his ringworld. During the ensuing battle between humans, Covenant, and the Flood on the Ark, Johnson is captured by Truth to activate the Halo rings. Keyes tries to intervene, but is killed. Master Chief and the Arbiter, aided by the Flood, kill the Covenant “prophet” of Truth and rescue Johnson. After finding out that the Ark is constructing a replacement for Guilty Spark’s Halo installation, Master Chief decides to fire the unstable Halo, destroying both the Flood and the Ark. After finding out about their plan, Guilty Spark kills Johnson and tries to kill Master Chief, but Master Chief destroys Guilty Spark and activates the Halo. Master Chief and the Arbiter escape on the UNSC frigate Forward Unto Dawn, but the slipspace portal closes with Master Chief’s half trapped in space. After a memorial service on Earth for the victims of the Human-Covenant war, the Arbiter and his Elite brethren depart for their home planet. The rear half of Forward Unto Dawn floats in deep space. Cortana activates a distress beacon and the Chief goes into hibernation.

Four years later, the Chief and Cortana awake to find they are being attacked by a Covenant splinter group. Caught in an artificial gravity well, they are pulled into the artificial Forerunner planet of Requiem, along with the UNSC ship Infinity. Master Chief, fighting Covenant and AI soldiers called Prometheans, unwittingly releases a hostile Forerunner warrior called the Didact. While seeking a way to combat the Didact, Cortana reveals that she is becoming rampant, a state in AIs when their knowledge base becomes too large and they gradually go insane. Master Chief is eventually contacted by a Forerunner consciousness called the Librarian (The Didact’s Wife), who tells him about the Didact: during the crisis with the Flood, the Didact tried to use a device called the Composer to transform humanity into creatures like the Prometheans. He did this because he needed extra soldiers in the war. His own race then imprisoned him along with Forerunner soldiers and humans he had already converted. The Composer was hidden. After the Didact leaves Requiem and retrieves the Composer, Master Chief pursues him to Earth, with Master Chief and Cortana working together to destroy the Composer. Master Chief succeeds, but Cortana sacrifices herself to save him from the resultant explosion. Master Chief is later found floating among the rubble, and taken back to Infinity.


Unique Features

Secondary and Primary Reviews

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