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{{Era|HCW}}
{{Status|Canon}}
[[File:Halo-wars-Covenant-base.jpg|thumb|300px|A Covenant citadel.]]
[[File:Halo-wars-Covenant-base.jpg|thumb|300px|A Covenant citadel.]]
The '''citadel''' is a [[Covenant]] [[Socket Base|base structure]], and the Covenant equivalent of the [[Firebase|UNSC Firebase]] in ''[[Halo Wars]]''.<ref>[[Halowars.com|'''Official Halo Wars Community Site''']]: [[Halowars.com/Covenant#Citadel|''Game Info - Covenant - Citadel'']]</ref> It contains a Command Center, [[seven]] building sites, and four turret foundations.
The '''citadel''', sometimes known as '''occupation citadel'''{{Ref/Book|Id=enc22p301|Enc22|Page=301}} or a '''forward operations citadel''',{{Ref/Book|Id=enc22p223|Enc22|Page=223}} is a [[Covenant]] [[Socket Base|base structure]], and the Covenant equivalent of the [[Firebase|UNSC Firebase]].{{Ref/Site|Id=hwsite|URL=http://www.halowars.com/GameInfo/Citadel.aspx|Site=Official Halo Wars Community Site|Page=Citadel|D=18|M=11|Y=2010|LocalArchive=Archive:Halowars.com/Covenant#Citadel}} It contains a command center, [[seven]] modular building sites, and four turret foundations.


When a new base has been claimed in [[standard]] [[Skirmish]] or [[multiplayer]] mode, the beginning base facility is called the ''Outpost'' (not to be confused with the [[Banished]] structure of the [[Outpost|same name]]). It includes a Command Center and three building sites, but no [[Covenant automated plasma turret|turret]] foundations. Outpost can be upgraded to a ''Keep'', which includes a Command Center, five building sites and four turret foundations, and can be upgraded to a citadel.
== Overview ==
===Design details===
The citadel is a basic command structure deployed during interplanetary warfare or occupation campaigns. The citadel provides field command facilities for the commander of invading or defending Covenant forces to issue orders; it employs a modular system to build structures that support aggressive colonization as well as rapid deployment of troops and armor. Whereas UNSC Firebases and [[Banished Outpost]]s are prefabricated and airlifted into the battlefield large transport craft such as the [[D20 Heron]], [[D81-LRT Condor]] or [[Lich]], Covenant citadels and their supporting sub-structures are [[Teleporter|teleported]] into the battlefield whole. From here, supplies are driven into the base via [[gravity lift]] and stored in the Warehouses.{{Ref/Reuse|hwsite}} Once established, a large gravity lift is established in the front of the base, which can be used to move troops and vehicles to the front lines of the battle. The citadel does not appear to have any physical openings for which to enter or exit the base—troops simply use teleporters to enter and exit the base. When threatened, the base can lock down, which will establish a shield around the teleporter into the base to prevent unauthorised entry or exit into or out of the base.


== Summary ==
===Minibase===
[[File:HW_CovenantMinibase.png|thumb|right|A Covenant Minibase on Arcadia.]]
[[File:HW CovenantMinibase.png|thumb|A Covenant Minibase on Arcadia.]]
The citadel is a basic command structure with defenses such as [[Type-26 Wraith|Wraiths]], [[Type-32 Ghost|Ghosts]], and [[Type-26 Banshee|Banshees]], and can also be defended by base turrets. It also has a similar underground garage to the UNSC's Firebase. These provide field command facilities for invading or defending Covenant Armies. Much like its [[United Nations Space Command|UNSC]] equivalent, it possesses seven expansion "sockets" for more structures for research, unit production and defense.
The Covenant also made use of Minibases, smaller outposts only capable of supporting one additional structure. They were notably employed during the Battle of the Trove, where they were used as forward airbases with which to construct {{Pattern|Oghal|Banshee}}s and {{Pattern|Bkowe'nei|Vampire}}s.{{Ref/Level|Id=beachhead|HW|Beachhead (Halo Wars level)|Beachhead}} Unlike their UNSC [[Firebase#Minibase|counterpart]], there is no structure for the building of the Covenant minibase to attach to; simply a teleporter pad on the ground for troops and supplies to use to enter the lone building.
 
=== Expansions ===
The citadel is capable of hosting up to seven modular structures, alongside up to four turret slots.
*[[Covenant Temple|Temple]]
*[[Covenant Warehouse|Warehouse]]
*[[Covenant Hall|Hall]]
*[[Covenant Factory|Factory]]
*[[Summit (building)|Summit]]
*[[Covenant Shield Generator|Shield generator]]
*{{Pattern|Kewu Umppi'pa'|citadel turret}}
 
==History==
[[File:Hroa4 raid.png|thumb|A citadel is attacked by the Banished.]]
Covenant citadels were employed by the Covenant during several battles in [[2531]]. One was employed during the [[Harvest campaign]], in which it was used to defend the [[Relic (location)|relic]].{{Ref/Level|HW|Relic Approach}} Several were later used in the [[Battle for Arcadia]]; one was deployed in [[Pirth City]] to defend a {{Pattern|Emp'seam|Antlion}} that was shelling the city,{{Ref/Level|HW|Arcadia City}} while another was deployed in the city's outskirts.{{Ref/Level|HW|Arcadia Outskirts}} Several citadels and minibases were deployed under the protection of a massive Covenant [[Energy shielding|dome]], though they would eventually be destroyed by an [[Orbital bombardment]].{{Ref/Level|HW|Dome of Light}} The Covenant also made extensive use of citadels during the [[Battle of Trove]]; UNSC forces from the {{UNSCShip|Spirit of Fire}} destroyed four citadels to establish a stronger foothold on the surface.{{Ref/Reuse|beachhead}}
 
At some point before the [[Battle of Line Installation 1-4]] in [[2552]], [[SPARTAN-II program|Spartan-II]] [[Black Team]] destroyed a citadel.{{Ref/Comic|HBL|Issue=5}} Shortly following the end of the Human-Covenant War, a citadel being used as an airbase on the swamp-moon of [[Kostroda]] by shipmaster [[Let 'Volir]] would be attacked by [[Atriox]] and his Banished forces.{{Ref/Comic|RoA|Issue=4}}
 
== In-game information ==
===''Halo Wars''===
[[File:COVENANT Citadel 1.jpg|thumb|The citadel with no buildings or fortifications.]]
{{Quote|Use this to construct a new Outpost Base. Eventually, it can be upgraded to a full Citadel, increasing your ability to crush the evil enemy filth.|In-game description}}
In ''[[Halo Wars]]'', a default Outpost costs {{HWResources|500}} [[Supplies|resources]] to be built, and only provides three construction slots and no turret foundations. A gravity lift is automatically placed at the front of the base; units (other than the Scarab) can be sent to the gravity lift which transports them to the Leader unit's location. The gravity lift can also be used to recall the Leader unit to the base instantaneously for the cost of {{HWResources|100}}.
 
The Outpost has two upgrades, ''Keep'' and ''Citadel''.
*The '''Keep''' is an upgraded version of the Firebase, retaining the command center, but adding two more building sites (for a total of five) and four turret foundations.
*The '''Citadel''' upgrade allows two other building sites, totaling to [[seven]] building sites and the same four turret sites from the station. It also features a self-destruct sequence allowing it to destroy itself for other allies to make a base in its spot and damage any enemy units nearby. The Citadel also allows for a lock sequence that will not allow any newly trained units to leave the base when done training/being produced.
 
Each building slot and turret slot can accommodate one additional structure.
{| class="wikitable" style="width: 75%;"
! rowspan="2" style="width: 20%" | Name !! rowspan="2" style="width: 10%" | Type !! colspan="3" style="width: 30%" | Cost !! rowspan="2" style="width: 40%" | Description
|-
| style="width: 10%" | '''Population''' || style="width: 10%" | '''Tech''' || style="width: 10%" | '''Resources'''
|- style="height: 40px"
| Gravity Lift || Teleport Units to Leader || colspan="3" | N/A {{C|Free; built with the Citadel}} || N/A
|- style="height: 40px"
| Turret || Base Defense || N/A || {{HWTech|0}} || {{HWResources|250}} || Turrets are good at defending bases against all enemy targets.
|- style="height: 40px"
| Warehouse || Produces Resources || N/A || {{HWTech|0}} || {{HWResources|100}} || The Covenant Warehouse produces the resources needed to train units, building buildings, and buy technology upgrades. Bases that have great economic production might have 6 Warehouses.
|- style="height: 40px"
| Temple || Increases Tech Level || {{HWPop|1/1}}{{Ref/Note|Id=temple|Only one Temple can be built at any time.}} || {{HWTech|0}} || {{HWResources|500}} || Temples allow the Covenant to access advanced buildings, units and technology upgrades.
|- style="height: 40px"
| Shield Generator || Base Protection || N/A || {{HWTech|1}} || {{HWResources|200}} || Generates a large bubble shield to protect the base. Multiple Shield Generators can be built in a base to compound the shield's strength.
|- style="height: 40px"
| Hall || Trains Infantry || N/A || {{HWTech|0}} || {{HWResources|150}} || The Covenant Hall rallies infantry units to the cause. Upgrades for infantry units are also housed here.
|- style="height: 40px"
| Factory || Trains Vehicles || N/A || {{HWTech|0}} || {{HWResources|150}} || Most Covenant vehicles are pieced together and upgraded at the Factory.
|- style="height: 40px"
| Summit || Trains Aircraft || N/A || {{HWTech|0}} || {{HWResources|150}} || Covenant aircraft are constructed at the Summit. Aircraft upgrades are also in this structure.
|}
 
Among other things, the Citadels themselves can produce units and corresponding improvements for them.
{| class="wikitable" style="width: 75%;"
! rowspan="2" style="width: 20%" | Name !! rowspan="2" style="width: 10%" | Type !! colspan="3" style="width: 30%" | Cost !! rowspan="2" style="width: 40%" | Description
|-
| style="width: 10%" | '''Population''' || style="width: 10%" | '''Tech''' || style="width: 10%" | '''Resources'''
 
|-
! colspan="6"|All Leaders


Where UNSC Firebases and Banished Outposts are prefabricated and airlifted into the battlefield large transport craft such as the [[D20 Heron]], [[D81-LRT Condor]] or [[Lich]], Covenant citadels and their supporting sub-structures are [[Teleporter|teleported]] into the battlefield whole. From here, supplies are driven into the base via [[Gravity lift|gravity lift]] and stored in the Warehouses.<ref>[[Halowars.com|'''Official Halo Wars Community Site''']]: [[Halowars.com/Covenant#Warehouse|''Game Info - Covenant - Warehouse'']]</ref> Once established, a large Teleportation pad is established in the front of the base, which can be used to move troops and vehicles to the front lines of the battle. The citadel does not appear to have any physical openings for which to enter or exit the base - troops simply use teleporters to enter and exit the base. When threatened, the base can lock down, which will establish a shield around the teleporter into the base to prevent unauthorised entry or exit into or out of the base.
|- style="height: 40px"
| Keep || Upgrade || N/A || {{HWTech|0}} || {{HWResources|300}} || Upgrades base to a Keep, which adds two more building sites.
|- style="height: 40px"
| Citadel || Upgrade || N/A || {{HWTech|0}} || {{HWResources|400}} || Upgrades base to a Citadel, which adds two more building sites.


===Minibase===
|- style="height: 40px"
The Covenant also made use of Minibases, smaller outposts only capable of supporting one additional structure. They were notably employed during the Battle of the Etran Harborage, where they were used as forward airbases with which to construct Banshees and [[Type-29 Vampire|Vampires]].<ref>'''Halo Wars campaign level:''' ''[[Beachhead (Halo Wars level)|Beachhead]]''</ref> Unlike their UNSC [[Firebase#Minibase|counterpart]], there is no structure for the building of the Covenant minibase to attach to; simply a teleporter pad on the ground for troops and supplies to use to enter the lone building.
| [[Deutoros-pattern Scarab|Scarab]] || Uber Unit || {{HWPop|20}} || {{HWTech|3}} || {{HWResources|3,000}} || The Covenant Super Unit. These massive assault vehicles have a [[Focus cannon|devastating beam]] that can tear part virtually anything.
 
|-
! colspan="6"|[[Ripa 'Moramee|Arbiter]]


==History==
|- style="height: 40px"
[[File:Hroa4 raid.png|thumb|right|A citadel is attacked by the Banished.]]
| [[Suicide Unggoy|Suicide Grunts]] || Special Forces || {{HWPop|1}} || {{HWTech|1}} || {{HWResources|160}} || Suicide Grunts are a perverted variant of the already dangerous [[Unggoy|Grunts]]. They can sacrifice themselves on enemy targets using the Suicide Ability.
Covenant citadels were employed by the Covenant during several battles in [[2531]]. One was employed during the [[Harvest campaign]], in which it was used to defend the [[Relic]].<ref>'''[[Halo Wars]] campaign level:''' ''[[Relic Approach]]''</ref> Several were later used [[Battle for Arcadia]]; one was deployed in [[Pirth City]] to defend a [[Mega turret]] that was shelling the city<ref>'''Halo Wars campaign level:''' ''[[Arcadia City]]''</ref>, while another was deployed in the city's outskirts.<ref>'''Halo Wars campaign level:''' ''[[Arcadia Outskirts]]''</ref>. Several citadels and minibases were deployed under the protection of a massive Covenant [[Energy shielding|dome]], though they would eventually be destroyed by an [[Orbital bombardment]].<ref>'''Halo Wars campaign level:''' ''[[Dome of Light]]''</ref>
|- style="height: 40px"
| Zeal || Upgrade || N/A || {{HWTech|2}} || {{HWResources|500}} || Suicide Grunts are faster in Suicide Mode.
|- style="height: 40px"
| Defile || Upgrade || N/A || {{HWTech|3}} || {{HWResources|800}} || The Suicide Grunt's explosion splashes enemies with burning chemicals.


The Covenant would make extensive use of citadels during the [[Battle of the Etran Harborage]].
|-
! colspan="6"|[[Avitus|Brute Chieftain]]


Shortly following the end of the Human-Covenant War, a citadel being used as an airbase by shipmaster [[Let 'Volir]] would be attacked by [[Atriox]] and his Banished forces.<ref>''[[Halo: Rise of Atriox Issue 4]]''</ref>
|- style="height: 40px"
| Brute || Special Forces || {{HWPop|1}} || {{HWTech|1}} || {{HWResources|150}} || Specialized, heavy infantry with powerful [[Jovokada Workshop brute shot|Brute guns]], these squads dish out lots of damage.
|- style="height: 40px"
| [[Jump pack|Jump Pack]] Ability || Upgrade || N/A || {{HWTech|2}} || {{HWResources|500}} || Enables the Jump Pack Ability, allowing Brutes to quickly cross the battlefield.
|- style="height: 40px"
| Electric Shot || Upgrade || N/A || {{HWTech|3}} || {{HWResources|800}} || The Bute Shot causes electrical stun damage when it hits.


== Expansions ==
|-
[[File:COVENANT Citadel 1.jpg|thumb|The citadel with no buildings or fortifications.]]
! colspan="6"|[[Prophet of Regret]]
The citadel is capable of hosting up to seven fortifications, alongside up to four turret slots.
*[[Covenant temple|Temple]]
*[[Covenant warehouse|Warehouse]]
*[[Covenant hall|Hall]]
*[[Factory]]
*[[Summit]]
*[[Covenant shield generator|Shield generator]]
*[[Covenant automated plasma turret|Automated plasma turret]]


==Units produced and available upgrades==
|- style="height: 40px"
*[[Type-47B Scarab|Scarabs]]
| [[Honor Guard#Sangheili|Elite Honor Guard]] || Special Forces || {{HWPop|1}} || {{HWTech|1}} || {{HWResources|125}} || Specialty troops that guard the Prophet. These stealthy infantry wield powerful [[Energy sword (fiction)|plasma swords]] capable of shredding any target.
*[[Sangheili Honor Guardsman|Honor Guard Elites]] ([[Prophet of Regret]] only)
|- style="height: 40px"
**Cloaking Ability
| [[Active camouflage|Cloak]] Ability || Upgrade || N/A || {{HWTech|2}} || {{HWResources|500}} || Enables Cloak Ability.
**Personal Shield
|- style="height: 40px"
*[[Jiralhanae|Brutes]] ([[Jiralhanae Army Commander|Brute Army Commander]] only)
| [[Energy shielding|Personal Shield]] || Upgrade || N/A || {{HWTech|3}} || {{HWResources|800}} || Adds a personal shield that decreases incoming damage.
**Jump Pack
|}
**Electric Shot
*[[Suicide Unggoy|Suicide Grunts]] ([[Ripa 'Moramee|Arbiter]] only)
**Zeal
**Defile


==Gallery==
==Gallery==
{{Linkbox|gallery=yes}}
{{Linkbox|gallery=yes}}
===Concept art and illustrations===
<gallery>
<gallery>
File:HW-CovenantBuilding_Concept.jpg|Concept art of a building for the Citadel.
File:HW-CovenantBuilding_Concept.jpg|Concept art of a building for the Citadel.
File:HW-Concept-CovenantTeleporterPad.jpg|Concept art of the [[Teleporter]] pad on the front of the citadel.
File:HW-Concept-CovenantTeleporterPad.jpg|Concept art of the [[gravity lift]] pad on the front of the citadel.
File:HW Covenant Base S.jpg|Concept art of the Covenant citadel.
File:HW Citadel_Concept.jpg|Concept art of the Covenant citadel.
File:COVENANT Equipment.jpg|The citadel's turrets, building and teleporter pads.
File:HROA Citadel 3D.jpg|An early 3D placement pass on a Citadel in ''Halo: Rise of Atriox''.
File:Shield gen.jpg|A shielded Covenant citadel.
File:HROA Citadel Sketch.jpg|Early sketch of the Citadel in ''Halo: Rise of Atriox''.
File:HW Citadel Screenshot 1.jpg
</gallery>
File:HW Citadel Screenshot 2.jpg|
===Renders===
<gallery>
File:COVENANT Equipment.jpg|The citadel's turrets, building pad, and gravity lift.
File:HW Citadel Render 1.jpg|A render of the citadel model in ''Halo Wars'', with poly and texture information.
File:HW_CovenantMinibase_Render.jpg|A render of the Covenant minibase with no attached buildings.
</gallery>
===Screenshots===
<gallery>
File:HW ShieldedCitadel Screenshot.jpg|A shielded Covenant citadel.
File:HW Screenshots E3 7.jpg|A Covenant citadel defended by Covenant troops and vehicles.
File:HW Screenshots E3 6.jpg|A Covenant citadel under attack.
File:HaloWars-CovBase01-Screenshot.jpg|A Citadel and a Covenant army supporting it.
File:HW Screenshots Leipzig 3.jpg|Two Citadels on [[Frozen Valley]].
File:HWDE PirthOutskirts TugOfWar.jpg|A Citadel in a round of [[Tug of War]] on [[Pirth Outskirts]].
File:HL - Origins - Covenant cidatel - 00001.png|An overrun Covenant citadel, with an [[Arbiter]] nearby, as seen during ''[[Halo Legends]]''' ''[[Origins]]''.
File:HL - Origins - Covenant cidatel - 00002.png|The Covenant citadel's constructs, including a Summit.
</gallery>
</gallery>


==List of appearances==
==List of appearances==
*''[[Halo Wars]]'' {{1st}}
*''[[Halo Wars]]'' {{1st}}
*''[[Halo Legends]]''
**''[[Origins]]''
*''[[Halo: Blood Line]]''
*''[[Halo: Blood Line]]''
*''[[Halo Wars 2]]'' {{Mo}}
*''[[Halo Wars 2]]'' {{Mo}}
*''[[Halo: Rise of Atriox]]''
*''[[Halo: Rise of Atriox]]''
==Notes==
{{Ref/Notes}}


==Sources==
==Sources==
<references/>
{{Ref/Sources}}


{{HW buildings}}
{{HW buildings}}
[[Category:Covenant buildings]]
[[Category:Covenant buildings]]
[[Category:Fortifications]]
[[Category:Fortifications]]

Latest revision as of 23:03, August 21, 2024

A Covenant Citadel in Halo Wars.
A Covenant citadel.

The citadel, sometimes known as occupation citadel[1] or a forward operations citadel,[2] is a Covenant base structure, and the Covenant equivalent of the UNSC Firebase.[3] It contains a command center, seven modular building sites, and four turret foundations.

Overview[edit]

Design details[edit]

The citadel is a basic command structure deployed during interplanetary warfare or occupation campaigns. The citadel provides field command facilities for the commander of invading or defending Covenant forces to issue orders; it employs a modular system to build structures that support aggressive colonization as well as rapid deployment of troops and armor. Whereas UNSC Firebases and Banished Outposts are prefabricated and airlifted into the battlefield large transport craft such as the D20 Heron, D81-LRT Condor or Lich, Covenant citadels and their supporting sub-structures are teleported into the battlefield whole. From here, supplies are driven into the base via gravity lift and stored in the Warehouses.[3] Once established, a large gravity lift is established in the front of the base, which can be used to move troops and vehicles to the front lines of the battle. The citadel does not appear to have any physical openings for which to enter or exit the base—troops simply use teleporters to enter and exit the base. When threatened, the base can lock down, which will establish a shield around the teleporter into the base to prevent unauthorised entry or exit into or out of the base.

Minibase[edit]

A Covenant minibase with a Factory built atop it on Beasley's Plateau.
A Covenant Minibase on Arcadia.

The Covenant also made use of Minibases, smaller outposts only capable of supporting one additional structure. They were notably employed during the Battle of the Trove, where they were used as forward airbases with which to construct Oghal-pattern Banshees and Bkowe'nei-pattern Vampires.[4] Unlike their UNSC counterpart, there is no structure for the building of the Covenant minibase to attach to; simply a teleporter pad on the ground for troops and supplies to use to enter the lone building.

Expansions[edit]

The citadel is capable of hosting up to seven modular structures, alongside up to four turret slots.

History[edit]

A citadel is attacked by the Banished.

Covenant citadels were employed by the Covenant during several battles in 2531. One was employed during the Harvest campaign, in which it was used to defend the relic.[5] Several were later used in the Battle for Arcadia; one was deployed in Pirth City to defend a Emp'seam-pattern Antlion that was shelling the city,[6] while another was deployed in the city's outskirts.[7] Several citadels and minibases were deployed under the protection of a massive Covenant dome, though they would eventually be destroyed by an Orbital bombardment.[8] The Covenant also made extensive use of citadels during the Battle of Trove; UNSC forces from the UNSC Spirit of Fire destroyed four citadels to establish a stronger foothold on the surface.[4]

At some point before the Battle of Line Installation 1-4 in 2552, Spartan-II Black Team destroyed a citadel.[9] Shortly following the end of the Human-Covenant War, a citadel being used as an airbase on the swamp-moon of Kostroda by shipmaster Let 'Volir would be attacked by Atriox and his Banished forces.[10]

In-game information[edit]

Halo Wars[edit]

A render of the Covenant citadel model made for Halo Wars.
The citadel with no buildings or fortifications.

"Use this to construct a new Outpost Base. Eventually, it can be upgraded to a full Citadel, increasing your ability to crush the evil enemy filth."
— In-game description

In Halo Wars, a default Outpost costs Resources 500 resources to be built, and only provides three construction slots and no turret foundations. A gravity lift is automatically placed at the front of the base; units (other than the Scarab) can be sent to the gravity lift which transports them to the Leader unit's location. The gravity lift can also be used to recall the Leader unit to the base instantaneously for the cost of Resources 100.

The Outpost has two upgrades, Keep and Citadel.

  • The Keep is an upgraded version of the Firebase, retaining the command center, but adding two more building sites (for a total of five) and four turret foundations.
  • The Citadel upgrade allows two other building sites, totaling to seven building sites and the same four turret sites from the station. It also features a self-destruct sequence allowing it to destroy itself for other allies to make a base in its spot and damage any enemy units nearby. The Citadel also allows for a lock sequence that will not allow any newly trained units to leave the base when done training/being produced.

Each building slot and turret slot can accommodate one additional structure.

Name Type Cost Description
Population Tech Resources
Gravity Lift Teleport Units to Leader N/A (Free; built with the Citadel) N/A
Turret Base Defense N/A Tech level 0 Resources 250 Turrets are good at defending bases against all enemy targets.
Warehouse Produces Resources N/A Tech level 0 Resources 100 The Covenant Warehouse produces the resources needed to train units, building buildings, and buy technology upgrades. Bases that have great economic production might have 6 Warehouses.
Temple Increases Tech Level Population 1/1[Note 1] Tech level 0 Resources 500 Temples allow the Covenant to access advanced buildings, units and technology upgrades.
Shield Generator Base Protection N/A Tech level 1 Resources 200 Generates a large bubble shield to protect the base. Multiple Shield Generators can be built in a base to compound the shield's strength.
Hall Trains Infantry N/A Tech level 0 Resources 150 The Covenant Hall rallies infantry units to the cause. Upgrades for infantry units are also housed here.
Factory Trains Vehicles N/A Tech level 0 Resources 150 Most Covenant vehicles are pieced together and upgraded at the Factory.
Summit Trains Aircraft N/A Tech level 0 Resources 150 Covenant aircraft are constructed at the Summit. Aircraft upgrades are also in this structure.

Among other things, the Citadels themselves can produce units and corresponding improvements for them.

Name Type Cost Description
Population Tech Resources
All Leaders
Keep Upgrade N/A Tech level 0 Resources 300 Upgrades base to a Keep, which adds two more building sites.
Citadel Upgrade N/A Tech level 0 Resources 400 Upgrades base to a Citadel, which adds two more building sites.
Scarab Uber Unit Population 20 Tech level 3 Resources 3,000 The Covenant Super Unit. These massive assault vehicles have a devastating beam that can tear part virtually anything.
Arbiter
Suicide Grunts Special Forces Population 1 Tech level 1 Resources 160 Suicide Grunts are a perverted variant of the already dangerous Grunts. They can sacrifice themselves on enemy targets using the Suicide Ability.
Zeal Upgrade N/A Tech level 2 Resources 500 Suicide Grunts are faster in Suicide Mode.
Defile Upgrade N/A Tech level 3 Resources 800 The Suicide Grunt's explosion splashes enemies with burning chemicals.
Brute Chieftain
Brute Special Forces Population 1 Tech level 1 Resources 150 Specialized, heavy infantry with powerful Brute guns, these squads dish out lots of damage.
Jump Pack Ability Upgrade N/A Tech level 2 Resources 500 Enables the Jump Pack Ability, allowing Brutes to quickly cross the battlefield.
Electric Shot Upgrade N/A Tech level 3 Resources 800 The Bute Shot causes electrical stun damage when it hits.
Prophet of Regret
Elite Honor Guard Special Forces Population 1 Tech level 1 Resources 125 Specialty troops that guard the Prophet. These stealthy infantry wield powerful plasma swords capable of shredding any target.
Cloak Ability Upgrade N/A Tech level 2 Resources 500 Enables Cloak Ability.
Personal Shield Upgrade N/A Tech level 3 Resources 800 Adds a personal shield that decreases incoming damage.

Gallery[edit]

Main-Superintendent.png Browse more images in this article's gallery page.

Concept art and illustrations[edit]

  • Concept art of a building for the Citadel.

    Concept art of a building for the Citadel.

  • Concept art of the gravity lift pad on the front of the citadel.

    Concept art of the gravity lift pad on the front of the citadel.

  • Concept art of the Covenant citadel.

    Concept art of the Covenant citadel.

  • An early 3D placement pass on a Citadel in Halo: Rise of Atriox.

    An early 3D placement pass on a Citadel in Halo: Rise of Atriox.

  • Early sketch of the Citadel in Halo: Rise of Atriox.

    Early sketch of the Citadel in Halo: Rise of Atriox.

Renders[edit]

  • The citadel's turrets, building pad, and gravity lift.

    The citadel's turrets, building pad, and gravity lift.

  • A render of the citadel model in Halo Wars, with poly and texture information.

    A render of the citadel model in Halo Wars, with poly and texture information.

  • A render of the Covenant minibase with no attached buildings.

    A render of the Covenant minibase with no attached buildings.

Screenshots[edit]

  • A shielded Covenant citadel.

    A shielded Covenant citadel.

  • A Covenant citadel defended by Covenant troops and vehicles.

    A Covenant citadel defended by Covenant troops and vehicles.

  • A Covenant citadel under attack.

    A Covenant citadel under attack.

  • A Citadel and a Covenant army supporting it.

    A Citadel and a Covenant army supporting it.

  • Two Citadels on Frozen Valley.

    Two Citadels on Frozen Valley.

  • A Citadel in a round of Tug of War on Pirth Outskirts.

    A Citadel in a round of Tug of War on Pirth Outskirts.

  • An overrun Covenant citadel, with an Arbiter nearby, as seen during Halo Legends' Origins.

    An overrun Covenant citadel, with an Arbiter nearby, as seen during Halo Legends' Origins.

  • The Covenant citadel's constructs, including a Summit.

    The Covenant citadel's constructs, including a Summit.

List of appearances[edit]

Notes[edit]

  1. ^ Only one Temple can be built at any time.

Sources[edit]

  1. ^ Halo Encyclopedia (2022 edition), page 301
  2. ^ Halo Encyclopedia (2022 edition), page 223
  3. ^ a b Official Halo Wars Community Site, Citadel (Retrieved on Nov 18, 2010) [local archive] [external archive]
  4. ^ a b Halo Wars, campaign level Beachhead
  5. ^ Halo Wars, campaign level Relic Approach
  6. ^ Halo Wars, campaign level Arcadia City
  7. ^ Halo Wars, campaign level Arcadia Outskirts
  8. ^ Halo Wars, campaign level Dome of Light
  9. ^ Halo: Blood Line, issue 5
  10. ^ Halo: Rise of Atriox, issue 4

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Buildings in the Halo Wars series

v • d • e
 
Halo Wars buildings

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UNSC
Firebase (Station • Fortress) • Minibase
Base structures
Air Pad • Barracks • Field Armory • Reactor (Advanced Reactor) • Supply Pad (Heavy Supply Pad) • Turret • Vehicle Depot
Other structures

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Covenant
Citadel (Outpost • Keep) • Minibase
Base structures
Factory • Gravity Lift • Hall • Shield generator • Summit • Temple • Warehouse (Blessed Warehouse)
Turret sites
Turret (Medium Turret • Large Turret)
Other structures

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Flood
Colony • Den • Nest • Launcher • Proto-Gravemind • Root • Stalk • Vent

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Insurrection
Bases
Turret slots
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Halo Wars 2 buildings

v • d • e
 
UNSC
Firebase (Combat Station • Command Center • Headquarters)
Minibase • Stronghold (gametype specific)
Base slots
Airpad • Armory • Barracks • Garage • Generator (Advanced Generator) • Supply Pad (Heavy Supply Pad)
Turret slots
Turret Emplacement (Anti-Infantry • Anti-Vehicle • Anti-Air) • Watchtower • Siege Turret
Other deployable structures

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Banished
Banished outpost (Stronghold • Citadel • Fortress)
Minibase • Stronghold (gametype specific)
Base slots
Apex • Foundry • Harvester (Augmented Harvester) • Mega-turret • Banished Power Extractor (Augmented Extractor) • Banished Raid Camp • Banished War Council
Turret slots
Turret (Anti-Infantry • Anti-Vehicle • Anti-Air) • Sensor Tower • Shield Generator • Cloaking Generator
Other deployable structures

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Forerunner

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Flood
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