Campaign: Difference between revisions

Campaign levels usually consist in missions in which the player kills enemies while going through the level's areas and completing given objectives; the story is established with cutscenes and in-game dialogues. [[Cooperative play]] is available in most but not all games, but the number of players can vary. Different difficulty options ([[Easy]], [[Normal]], [[Heroic]], [[Legendary]]) and gameplay modifiers ([[skulls]], [[Campaign scoring|scoring]]) also exist. The additional [[Spartan Ops]] mode in ''Halo 4'' is loosely based on campaign and continues the game's story.

The campaign is set in [[2552#September|September 2552]], as the [[United Nations Space Command]] is embroiled in the twenty-eighth year of a [[Human-Covenant War|genocidal war]] started by the alien collective known as the [[Covenant]]. The plot revolves around the crew of the {{UNSCShip|Pillar of Autumn}}, a ship that has escaped the catastrophic [[Fall of Reach|Battle of Reach]], only to stumble upon [[Installation 04]], a [[Halo Array|Halo ringworld]] in uncharted space. With the Covenant at their pursuit, the Master Chief gathers the human survivors and engages the enemy on the surface of Halo while trying to uncover the ring's origin and true purpose. The Covenant consider Halo as a gateway to paradise, however it is revealed that it is in fact a superweapon capable of destroying every sentient lifeform in the galaxy if activated. After the battle degenerates into a four-way conflict with the outbreak of the [[Flood]] and the [[Forerunner]] constructs, the Master Chief detonates the engines of the ''Autumn'' in order to destroy Halo and closely escapes the ringworld's destruction with his AI companion [[Cortana]].

The campaign starts in [[2552#October|October 2552]]. The Master Chief has returned to [[Earth]] after the destruction of Installation 04. Meanwhile, the Covenant commander who failed to protect Halo is branded a heretic. The Covenant finally discover and [[Battle of Earth|attack]] Earth, prompting the Chief to [[Battle of Mombasa|defend]] the city of [[Mombasa]], [[Kenya]]. Meanwhile, the deposed Elite becomes [[Arbiter]] and is sent by the [[Hierarchs]] to quell a rebellion against the Covenant. On Earth, the {{UNSCShip|In Amber Clad}}, with the Chief aboard, pursues the ship of the [[Prophet of Regret]], only to arrive to a new Halo ring, [[Installation 05]]. The Chief sets out to kill the Covenant Prophet while the Arbiter is sent to retrieve the [[activation index]] to secure Halo's activation. Both end in the clutches of the [[Gravemind]], the Flood's central intelligence, who tasks them to stop the ring's activation. The Covenant fall into a [[Great Schism|civil war]] as the Hierarchs order the [[Jiralhanae|Brutes]] to betray the [[Sangheili|Elites]]. The Arbiter manages to defeat [[Tartarus]], Chieftain of the Jiralhanae, by forming an alliance with the humans. Meanwhile, the Master Chief is forced to abandon Cortana in the Covenant's holy city, ''[[High Charity]]'', as it is being infested by the Flood, and chases after the last Covenant Hierarch, the [[Prophet of Truth]], who departs to Earth.

In ''Halo 3'', the player controls the Master Chief. Co-op allows two players in split-screen, and up to four players in system link or Xbox Live. The second, third and fourth players respectively control the Arbiter, [[N'tho 'Sraom]] and [[Usze 'Taham]]. It is one of only two ''Halo'' games in which the co-op mode has a canonical explanation. There are ten levels playable (an introductory cutscene and nine playable missions). The player can find [[Terminal (Halo 3)|Terminals]] and [[Halo 3 skulls|Skulls]], and change the game's difficulty either with the four traditional difficulties or with the Skulls. It is also the first game to introduce [[campaign scoring]]. Another feature it added was the Rally Point system which allows the player to choose where in the mission they start from with most having two or three rally points (including the option of "mission start" which is labelled as Rally Point Alpha in the MCC version of Halo 3, Halo 3 ODST and Halo 4) at important areas of a mission, such as just after a cutscene or when the player would have moved to a new area of the map, such as the cutscene after defeating 343 Guilty Spark in Halo or the area after the broken bridge in Tsavo Highway (labelled as the broken path).

The plot starts in [[2552#November|November 2552]], as the Master Chief returns to Earth to stop the Prophet of Truth. After being retrieved by the UNSC, he is sent to the besieged city of [[Voi]] to destroy the Covenant's heavy defenses. The UNSC fleet then launches an attack on Truth's [[Forerunner dreadnought|Forerunner ship]], but he manages to activate the [[Portal at Voi|Portal]] and departs to [[Installation 00|Installation 00, the Ark]], from where all the Halo rings can be activated. Miutes after, the Flood attacks Earth but is sterilized. The UNSC and the Elites join their forces and battle the last Covenant forces on the Ark, culminating in the assassination of the Prophet of Truth. The Flood also attack the Ark via the infested ''High Charity''. The Chief retrieves Cortana and they set out to activate a newly built Halo ring, [[Installation 08]], to destroy the local infestation. During the escape, the {{UNSCShip|Forward Unto Dawn}} is cut in half by the Portal, with the forward section crashing on Earth with the Arbiter and the aft section being lost in space, with the Chief and Cortana aboard. The Spartan waits in cryosleep until the UNSC find and rescue them, meanwhile the Human-Covenant War is declared over.

''Halo: Reach'' also featured matchmaking support for campaign where players could be automatically matched to each other.<ref>[http://halo.bungie.net/News/content.aspx?type=topnews&link=BWU_082010 Bungie weekly update 8/20/10]</ref>

In Halo Wars 2, player controls Captain James Cutter. Co-op allows up to two players in Xbox Live link. Player two also controls Captain Cutter as leader on original campaign. The original campaign consists of 12 Missions with Captain Cutter as leader while Extra campaign contains in total 7 missions, two mission from OPERATION: SPEARBREAKER with Major Vaughan as Leader and five mission from Awakening the Nightmare with Voridus and Pavium as Leader and can be played on four difficulties. The player can find Phoenix Logs by travelling around the map on mission and unlocking skulls by completing specific optional or bonus objectives.

The plot starts in end of March 2559 or 28 years after events on Etran Harborage, as Serina awakens entire crew of [[Spirit of Fire]] before making a final dispensation. Much to Captain Cutter and Professor Anders surprise, the ship somehow being drawn into [[Installation 00]] through slipspace travel which their own slipspace drive was used as a makeshift bomb on Etran Harborage. Red Team was dispatched to scout the Ark after receiving UNSC distress signal but only to encounter [[Atriox]], Leader of the [[Banished]] after retrieving the AI Isabel with Douglas-042 suffers heavy wound. Through investigation on the Ark, Anders discovers a foundry that will allow her to deploy a new Halo ring in order to raise a distress beacon where the closest [[Installation 04|original site]] is [[Reach]] but Cutter cannot approve that plan until Enduring Conviction, Banished's flagship is destroyed. Jerome-092 and Isabel was dispatched and manage to destroy the ship while Anders activate the ring for final preparations. UNSC and Banished contested their ground on new Installation where UNSC finally able to besiege Banished and Anders wipe them out using gravity anchors. Anders however was taken along with Installation 09 away from the Ark while UNSC and Banished continue to contest their ground on the Ark.