Editing Campaign

{{Status|Gameplay}}
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[[File:HMCC-Main Menu.jpg|thumb|300px|The campaign menu in ''Halo: The Master Chief Collection''.]]
'''Campaign''' is the [[Wikipedia:Single Player|single player]] aspect of the [[:Category:Games|''Halo'' games]]. In each game, the player participates in various episodes of the [[Halo universe|''Halo'' storyline]]. The most recurrent character that players control is [[John-117|John-117, the Master Chief]], although roughly half of the ''Halo'' games focus on other characters and stories. The events of the ''Halo'' campaigns focus on the confrontation between [[humanity]] and the [[Covenant]], and also feature prominent interventions by other factions such as the [[Flood]] or the [[Forerunner]]s.

Campaign levels usually consist of missions in which the player kills enemies while going through the level's areas and completing given objectives, where 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 a campaign and continues the game's story.

Most ''Halo'' games are [[:Wikipedia:First-person shooter|first-person shooters]] where the player controls a single character. The ''Halo Wars'' series are [[:Wikipedia:Real-time strategy|real-time strategy]] games, in which the player can take control of dozens of troops and units at a time. ''Halo: Spartan Assault'' and ''Spartan Strike'' are top-down isometric shooters.

==Campaigns==
===''Halo: Combat Evolved''===
{{Quote|While the Covenant had us locked up in here, I overheard the guards talking about this ring world. They call it... Halo.|Captain [[Jacob Keyes]] after being [[Raid on the Truth and Reconciliation|rescued]] by Master Chief Petty Officer John-117.{{Ref/Level|CE|[[The Truth and Reconciliation]]}}}}
[[File:Halo-combat-evolved.jpg|thumb|250px|Campaign promotional image for ''Halo: Combat Evolved''.]]
{{Main|Halo: Combat Evolved|Halo: Combat Evolved Anniversary}}
In ''Halo: Combat Evolved'', the player takes control of the [[John-117|Master Chief]]. Co-op play allows a second player (also playing the Master Chief) to join in split-screen or system link. In ''Halo: Combat Evolved Anniversary'', the second player can join via [[Xbox Live]]. There are ten levels, which can be played on four difficulties. ''Anniversary'' also adds [[Terminal (Halo: Combat Evolved Anniversary)|Terminals]], [[Halo: Combat Evolved Anniversary skulls|Skulls]], and the possibility to switch between old and new graphics.

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 in 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 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]].
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===''Halo 2''===
{{Quote|no=two|q1=I will continue my campaign against the humans!|Thel 'Vadamee|q2=No. You will not.|High Prophet of Truth|Thel 'Vadamee's campaign in ''Halo 2'' was focused against Heretics, the Flood, and eventually the Covenant.{{Ref/Level|H2|[[The Heretic]]}}}}
[[File:Halo 2 028.jpg|250px|thumb|left|Campaign promotional art for ''Halo 2''.]]
{{Main|Halo 2|Halo 2: Anniversary}}

In ''Halo 2'', the player alternates between the Master Chief and [[Thel 'Vadam|the Arbiter]]. Co-op allows a second player to join the game in split-screen or system link (or via Xbox Live in ''Halo 2: Anniversary''). Both players control the same character around whom the level focuses (ie: two Master Chiefs, or two Arbiters). There are fifteen levels (an introductory cutscene, a tutorial and thirteen full-fledged missions), playable on four different difficulties, and there are [[Halo 2 skulls|Skulls]] as gameplay modifiers. ''Halo 2: Anniversary'' adds [[Terminal (Halo 2: Anniversary)|Terminals]] and additional [[Halo: The Master Chief Collection skulls|Skulls]] along with the possibility to switch between old and new graphics.

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 at 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.
{{Clear}}

===''Halo 3''===
{{Quote|no=two|q1=What we should do [[Miranda Keyes|Commander]], is understand - clearly - that this is humanity's final stand - here - at Earth. We go, we risk everything; every last man, woman and child. If we stand our ground, we might just have a chance.|Lord Hood|q2=No. If your [[Cortana|construct]] is wrong, then the Flood has already won.|Thel 'Vadam|Humanity and the Sangheili plan their operation against the Covenant and the Flood.{{Ref/Level|H3|[[Floodgate]]}}}}
[[File:Halo 3 - Cooperative.jpg|thumb|250px|The four characters playable in co-op in the ''Halo 3'' campaign.]]
{{Main|Halo 3}}
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 labeled 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, labeled 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. Minutes 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 rescues them, and the Human-Covenant War is declared over.
{{Clear}}

===''Halo Wars''===
{{Quote|Captain's report, February 4, 2531. Five years, five long years. That's how long it took us to get Harvest back...|Captain [[James Cutter]] on the [[Harvest campaign]].{{Ref/Level|HW|[[Alpha Base (Halo Wars level)]]}}}}
[[File:HaloWars XboxPromo.jpg|thumb|left|250px|Campaign promotional art for ''Halo Wars''.]]
{{Main|Halo Wars}}
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===''Halo 3: ODST''===
{{Quote|You know the music. Time to dance!|Gunnery Sergeant [[Edward Buck]] to the rest of [[Alpha-Nine]].{{Ref/Level|ODST|[[Prepare To Drop]]}}}}
[[File:The Squad.jpg|thumb|250px|Campaign promotional art for ''Halo 3: ODST''.]]
{{Main|Halo 3: ODST}}
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===''Halo: Reach''===
{{Quote|no=two|q1=You want to know if we're losing?|Carter-A259|q2=I know we're losing! I want to know if we've lost.|Kat-B320|[[NOBLE Team]] Commander [[Carter-A259]] and Lieutenant Commander [[Kat-B320]] during the [[Siege of New Alexandria]].{{Ref/Level|HR|[[New Alexandria]]}}}}
[[File:Noble Team.jpg|thumb|left|250px|Campaign promotional art for ''Halo: Reach''.]]
{{Main|Halo: Reach}}
''Halo: Reach'' also featured matchmaking support for campaigns where players could be automatically matched to each other.{{Ref/Site|URL=http://halo.bungie.net/News/content.aspx?type=topnews&link=BWU_082010|Site=Halo.bungie.net|Detail=Bungie weekly update|D=20|M=8|Y=2010|ArchiveURL=https://web.archive.org/web/20141228125800/http://halo.bungie.net/News/content.aspx?type=topnews&link=BWU_082010}}
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===''Halo 4''===
{{Quote|Time was your ally, human, but now it has abandoned you. The Forerunners... have returned.|The [[Ur-Didact]] thanks John-117 for releasing him from his [[cryptum]].{{Ref/Level|H4|[[Forerunner (level)]]}}}}
[[File:H4 JohnandCortana Concept.jpg|thumb|250px|Campaign promotional art for ''Halo 4''.]]
{{Main|Halo 4}}
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===''Halo: Spartan Assault''===
{{Quote|Greeting, Spartan. I'm Roland, UNSC Infinity's AI. We're going to study the historical battles in hopes of increasing your tactical skills for the future. As a bonus, it's a pretty fun game you can play in your spare time. So let's get to it.|[[Roland]] explaining the [[TACSIM]] to a Spartan-IV.{{Ref/Level|HSA|[[Operation A: Umbra]]}}}}
[[File:HSA-Cinematic-Horizon.jpg|thumb|left|250px|[[Sarah Palmer]] in one of the cinematics of ''Halo: Spartan Assault''.]]
{{Main|Halo: Spartan Assault}}
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===''Halo: Spartan Strike''===
{{Quote|Our combat simulation is up and running, so let's see how you do playing through this operation as a lone Spartan. Good luck!|Roland prepares a TACSIM for a Spartan-IV.{{Ref/Level|HSS|[[Operation A: Orphic Spear]]}}}}
[[File:SpartanStrikeBanner.jpg|thumb|250px|Campaign promotional art for ''Halo: Spartan Strike''.]]
{{Main|Halo: Spartan Strike}}
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===''Halo 5: Guardians''===
{{Quote|no=two|q1=Cortana's our concern now, sir.|Jameson Locke|q2=Like hell she is.|John-117|Spartan [[Jameson Locke]] attempts to arrest an AWOL John-117.{{Ref/Level|H5G|[[Unconfirmed]]}}}}
[[File:Halo 5 Guardians.jpg|thumb|left|250px|Campaign promotional art for ''Halo 5: Guardians''.]]
{{Main|Halo 5: Guardians}}
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===''Halo Wars 2''===
{{Quote|Atriox and his Banished raided Covenant resources, cutting a swath across the galaxy; growing in strength with each attack. Gathering killers and mercenaries to his side. The Covenant had two targets in those years. Humanity and Atriox. They almost got us. But Atriox? They never came close.|[[Isabel]] explaining the Banished to Captain James Cutter.{{Ref/Level|HW2|[[A New Enemy]]}}}}
[[File:HW2 - Atriox and Red Team.jpg|thumb|250px|Campaign promotional art for ''Halo Wars 2'']]
{{Main|Halo Wars 2}}
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 the leader of an original campaign. The original campaign consists of 12 Missions with Captain Cutter as the leader while Extra campaign contains in total 7 missions, two missions from OPERATION: SPEARBREAKER with Major Vaughan as Leader and five missions from Awakening the Nightmare with Voridus and Pavium as Leader and can be played on four difficulties. The player can find Phoenix Logs by traveling around the map on missions and unlocking skulls by completing specific optional or bonus objectives.

The plot starts at the end of March 2559 or 28 years after events on Etran Harborage, as Serina awakens the entire crew of [[Spirit of Fire]] before making a final dispensation. Much to Captain Cutter and Professor Anders surprise, the ship was 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 the UNSC distress signal but only to encounter [[Atriox]], Leader of the [[Banished]] after retrieving the AI Isabel with Douglas-042 suffers a 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 were dispatched and managed to destroy the ship while Anders activate the ring for final preparations. UNSC and Banished contested their ground on new Installation where UNSC was 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.
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===''Halo: Fireteam Raven''===
{{Quote|You heard [[Wellsley|it]], Fireteam Raven! Gear up!|Major [[Antonio Silva]] to [[Fireteam Raven]] during the [[Battle of Installation 04]].{{Ref/Level|HFR|[[Escape (Halo: Fireteam Raven level)]]}}}}
[[File:HFR FireteamRaven Keyart 2.jpg|thumb|left|250px|Promotional art for ''Halo: Fireteam Raven''.]]
{{Main|Halo: Fireteam Raven}}
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===''Halo Infinite''===
{{Quote|Look around, Cortana. Your empire. Over! Your great plan? Ended at the hands of those who made you.|Atriox berates a captured Cortana during the [[Battle for Zeta Halo]].{{Ref/Level|Hi|[[Silent Auditorium]]}}}}
[[File:HINF Sacrifice.png|thumb|250px|Campaign promotional art for ''Halo Infinite'': the sixth mainline Halo game.]]
{{Main|Halo Infinite}}
In [[Halo Infinite]], the player character is once again the [[John-117|Master Chief]]. The campaign is different from previous entries in the series, as it takes on an open-world style. There are 16 main missions in Halo Infinite. However, 10 of them take place outside the open world. There are also many side missions the player can undertake, including capturing [[Forward Operating Base]]s, rescuing [[Marine]] squads, and assaulting [[Banished]] outposts. In co-op, other players are also the Master Chief. Players cannot get a certain distance away from each other, as they will die. [[Split-screen]] is not supported.

The plot starts in the year [[2560]]. The [[UNSC Infinity]] has been destroyed by [[Atriox]]'s Banished forces above [[Installation 07|Zeta Halo]]. The Master Chief battles Atriox onboard the Infinity, but is defeated and cast into space above the ring. He floats in space for 6 months before being found by [[Fernando Esparza|The Pilot]]. The Master Chief's suit is reactivated and he boards the warship [[Gbraakon]] and destroys it. He makes his way down to the ring to retrieve [[The Weapon]], whose purpose is to imitate and lock down [[Cortana]]. The Master Chief and the Weapon defeat various Banished forces, before learning of a species called [[Xalanyn|The Endless]] after meeting The [[Harbinger]]. The Harbinger tells him she wants to start the [[Reformation]] so she can find and free her people, who were imprisoned because they can survive the activation of the [[Halo Array]]. The Master Chief eventually makes his way to the [[Command Spire (location)|Command Spire]] and ends the Reformation. The Master Chief goes to the [[House of Reckoning]] and defeats [[Escharum]], who was the current leader of the Banished on the ring. Master Chief frees the Pilot, who had been captured while Chief made his way through the Command Spire. The Master Chief then goes to the [[Silent Auditorium]] to stop The Harbinger. After a fierce battle, the Master Chief defeats The Harbinger. She tells an unknown entity that they have what they need to finish her work. The auditorium collapses and the Master Chief is teleported to a mysterious desert area, and continues to fight against the Banished.
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==Trivia==
*All games except ''Halo: CE'' also have a unique, unofficial difficulty known to fans: [[Mythic]], which is Legendary with all [[Skull]]s activated. In ''Halo: Reach'', weekly [[challenges]] even feature completing levels on this difficulty. This is also known as LASO (Legendary, all skulls on).
*In ''Halo: Combat Evolved'', ''Halo 3'', ''Halo Wars'', ''Halo 4'' and ''Halo: Spartan Assault'', the endings of the five games end with a huge Forerunner structure getting destroyed or very damaged.
**''Halo: Combat Evolved'' ends with Halo [[Installation 04]] being destroyed.
**''Halo 3'' ends with Halo [[Installation 08]] firing (and getting destroyed by the effects)
**''Halo Wars'' ends with [[Trove|a Shield World]] imploding
**''Halo 4'' (and ''Spartan Ops'') ends with the [[Didact]]'s ship, ''[[Mantle's Approach]]'', the [[Composer]] and [[Requiem]] destroyed
**''Halo: Spartan Assault'' ends with [[X50]] sabotaged.
*Every ''Halo'' game released from [[2001]]-[[2009]], as well as ''Halo 4'', starts and ends with the player in space. 
**In ''Halo: Combat Evolved'', the game starts with Master Chief on the [[UNSC Pillar of Autumn|Pillar of Autumn]] and ends with him in a [[GA-TL1 Longsword|Longsword]]. 
**''Halo 2'' starts with him on [[Cairo Station (station)|Cairo Station]] and ends with him on the Forerunner Dreadnought. 
**''Halo 3'' starts off with him crashing towards [[Earth]] and ends with him stranded inside the {{UNSCShip|Forward Unto Dawn}}. 
**''Halo Wars'' starts with Captain Cutter on the {{UNSCShip|Spirit of Fire}} talking about the war on [[Harvest]] and ends with the freezing of [[Ellen Anders|Professor Anders]]. 
**''Halo 3: ODST'' starts with the [[Rookie]] on the {{UNSCShip|Say My Name}} and ends with him on an ONI orbital facility. 
**''Halo 4'' starts with the Master Chief inside the ''Forward Unto Dawn'' and ends inside the {{UNSCShip|Infinity}}. 
**''Halo Wars 2'', ''Halo: Fireteam Raven'', and ''Halo Infinite'' all start in space, but do not end there.
*AI cannot perform [[Needle Combine Kill Medal|needle supercombines]], except in ''Halo: Combat Evolved'', ''Halo 4'' and ''Halo 5: Guardians''

==Gallery==
<gallery>
File:HCE-MasterChief-Wallpaper.jpg|Campaign promotional art for ''Halo: Combat Evolved''.
File:H2-Concept-Earth-MOUT.jpg|Campaign concept art for ''Halo 2''.
File:H3 e32006 Custom ChiefCliff.jpg|Campaign promotional image for ''Halo 3''.
File:Mark ivPoster.jpg|Campaign promotional art for ''Halo Wars''.
File:H3ODST Romeo Art.jpg|Campaign concept art for ''Halo 3: ODST''.
File:HR_NobleTeam_Concept_1.jpg|Campaign concept art for ''Halo: Reach''.
File:HCEA 1920x1080.jpg|Campaign promotional image for ''Halo: Combat Evolved Anniversary''.
File:4 john.JPG|Campaign promotional art for ''Halo 4''.
File:Halo MCC.png|Campaign promotional image for ''Halo: The Master Chief Collection''.
File:MCC Poster 01.jpg|Campaign promotional image for ''Halo 2: Anniversary''.
File:H5G Poster.jpg|Campaign promotional art for ''Halo 5: Guardians''.
File:Ellen Anders Gabz.png|Campaign promotional art for ''Halo Wars 2''.
File:HFR LastStand Fighting.png|Promotional image for ''Halo: Fireteam Raven''.
File:HI_DH_Chief_ControlRoom_Concept.jpg|Campaign concept art for ''Halo Infinite''.
</gallery>

==Sources==
{{Ref/Sources}}

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[[Category:Campaign| ]]
[[Category:Game modes]]