Editing Citadel

{{Status|Gameplay}}
{{Disambig header|the Halo 3 multiplayer map|other uses|Citadel (disambiguation)}}
{{Multiplayer map infobox
|pagegamelabel=H3
|image=[[File:H3ODST Citadel env-01-1-.jpg|300px]]
|name=Citadel
|game=''[[Halo 3]]''
|devname=<code>fortress</code>{{Ref/File|Id=H3EK|H3EK|H3EK\tags\levels\dlc\fortress\fortress.scenario}}
|map=
|location=[[Installation 00]]
|terrain=Forerunner structure set in a desert wasteland.
|symmetry=Symmetrical
|playernumber=2-6
|gametypes=*[[Team Slayer]]
*[[Multi Flag CTF]]
*[[Assault]]
}}
{{Article quote|In the heart of this [[Forerunner]] structure, far above the troubled surface of [[Installation 00|the Ark]], another battle rages.}}

'''Citadel''' is a ''[[Halo 3]]'' map that was released on September 22, 2009, with ''[[Halo 3: ODST]]'', as a part of the [[Mythic II Map Pack]].

==Universe and lore==
{{stub|section=yes}}
The map is a section of the structure first seen in the ''Halo 3'' [[Multiplayer]] map [[Epitaph]],<ref>[http://halo.bungie.net/news/content.aspx?type=topnews&link=CitadelInDepth '''Bungie.net''': ''First Look on Citadel''] - ''"It is a small section of the Forerunner structure that players first saw in the Halo 3 multiplayer map Epitaph."''</ref> which is a Forerunner "cathedral" that towers over the Ark.
==Overview==
===Layout===
Citadel is based on the ground floor of the shield towers from the ''[[Halo 3]]'' campaign level, [[The Covenant (level)|The Covenant]]. It is built off of the geometry from the area around the elevators. There are differences in the geometry for multiplayer game play reasons, including the removal of the automatic doors and minor adjustments to the terrain.

The outside of the map is the same desert from Epitaph, as it is a part of the same tower. However, the player cannot see the tower from the map as it blocks the view. The inside of the map is symmetrical, having identical bases and walkways, making it an ideal [[Team Slayer]] map. The textures of walls and floors resemble the textures of the walls and floors from [[Construct]] and The Covenant.

Citadel has a number of tight corridors and doorways, making grenade throwing much more frequent. The bases have two levels, with the top level accessible by a ramp or a nearby jump. The bases are also open, but still small, and have a wide open view over to the enemies base.
<gallery>
File:Citadel.jpg|Overhead view of Citadel.
File:HMCC H3 Citadel Map.png|Map of Citadel in ''Halo: The Master Chief Collection''.
</gallery>

===Strategies===
*A good start to secure the [[M41 SPNKR|rocket launcher]] is to grab a [[BR55HB battle rifle|BR]] or [[Vostu-pattern carbine|carbine]] and destroy the [[power core]]s on the other side. This weakens the enemies for easy headshots and allows your team's possession of the rockets.
*There are many angled walls in this map, making [[grenade]]s an ideal choice when going into a potentially hostile area.
*It is best to have your team secure the weapons available to them early in the game, as the other team has almost as easy access to them.
*Considering the small nature of this map, a [[power drain]] is ideal for flushing enemies out.
*When playing in free for all, it is vital you control a power weapon as soon as possible.
*The small size of this map makes players often pass up the [[SRS99D-S2 AM sniper rifle|sniper rifle]]. If you are good at no-scoping, then the sniper can be helpful when looking at the rocket platform.
*It is possible to jump to the other team's base off of the rocket platform; this is especially good for Capture the Flag matches and Assault.
*This map focuses incredibly on teamwork due to its tight corridors and open bases. Moving in groups provides a substantial advantage.

==Achievements==
The following [[achievement]]s can be unlocked on Citadel across the [[Xbox 360]] and ''[[Halo: The Master Chief Collection]]'' editions of ''Halo 3''.
{| class="wikitable"
|-
! scope="col" style="text-align:center;" |'''''Halo 3'' (Xbox 360)'''
! scope="col" style="text-align:center;" |'''''Halo: MCC'' (Xbox One)'''
! scope="col" style="width:135px;text-align:center;" |'''''Halo: MCC'' (Steam)'''
! scope="col" style="width:175px;height:20px;text-align:center;" |'''Title'''
! scope="col" style="width:350px;height:20px;text-align:center;" |'''Unlock requirement'''
! scope="col" style="width:200px;height:20px;text-align:center;" |'''Games'''
|-
|[[File:H3 Achievement Pull.png|center|64px]]
|<center>N/A</center>
|<center>N/A</center>
|<center>'''[[Pull!]]'''</center>
|On Citadel, get a [[Shotgun Spree]] during any ranked or social match. 
|<center>''[[Halo 3]]''</center>
|-
|[[File:H3 Achievement Citadel Skull.png|center|64px]]
|[[File:Citadel Skull.jpg|center|114px]]
|[[File:HTMCC H3 Achievement Steam CitadelSkull.jpg|center|64px]]
|<center>'''[[Citadel Skull (achievement)|Citadel Skull]]'''</center>
|Find the hidden [[Halo 3 skulls|Skull]] on Citadel.
|<center>''[[Halo 3]]''<br>''[[Halo: The Master Chief Collection]]''</center>
|}

==Production notes==
The map was first designed to be much bigger and originally had an [[elevator]] for each team, though these features have been removed for undisclosed reasons, most likely to reduce possible lag or eliminate possible glitches associated with such features.{{Citation needed}}

==Trivia==
*The map has a cross-shaped symbol, similar to the symbols on [[Sandbox]] and [[Sandtrap]].
*The strange roaring noises heard on [[Chiron TL-34]], [[Assault on the Control Room]] and [[Two Betrayals]] can also be heard on this map.
*Although the map takes place on Installation 00, the arms of the Ark are not visible. This is also the same for Epitaph, which takes place in the same structure.
*If a player looks out of the "windows" with a scoped weapon, one can see what looks like a desert setting with a structure similar in appearance to the edges of a Halo, only it appears to be made out of bricks and mortar.
*It is possible, in Forge, to go under the glass floor in the middle of the map. You can even go to the bottom of the hole and place objects.
*If you look out the skylight windows, there is no evidence of the tower continuing. However, looking out of the side windows (and using the road-like metal objects outside as reference points) reveals that Citadel is closer to the ground than Epitaph is. The former would seem to imply that Citadel is at the top of the tower, but the latter proves that it is closer to the bottom.
**This may have been a simple level design oversight. Using [[Panoramic camera mode|Pan Cam]] reveals that the developers completely removed the tower's exterior (such that in terms of the Citadel's 3D, the area is effectively a set of hallways floating in midair). They may not have noticed the resulting discrepancy.
**Citadel seems to be set at the top of the tower, if the player looks upward while standing on the elevated area in the center of the map, the player will see sky. However, when on Epitaph and looking upward, Citadel cannot be seen. This disproves the idea that Citadel is at the top of the tower.

===Easter eggs===
*This map has a [[Halo 3 skulls#Citadel|Skull]] for the multiplayer [[achievement]]s. When found, it unlocks the achievement [[Halo 3 skulls#Citadel|Citadel Skull]], which is depicted by the skull and a [[Forerunner symbols|Forerunner glyph]] on the forehead. The skull is near the blue side of the map; near the area where a doorway is in between two glowing "B"s. The skull is on top of the "B" on the right-hand side. It is hidden atop of the B inside a small concealed place.{{Ref/Marketing|Halo 3: ODST|[[Halo 3: ODST ViDoc: Road to Recon|ViDoc: Road to Recon]]}}

==Gallery==
{{Linkbox|gallery=yes}}
<gallery>
File:H3 Citadel02.jpg|A Sangheili kills a Spartan underneath the center platform.
File:H3 Citadel03.jpg|An EVA-clad Spartan waits behind a pillar.
File:H3 Citadel04.jpg|Two Spartans fighting near the center of the map.
File:H3 Citadel05.jpg|Battle in the center of the map.
File:halo3 113136465 Full.jpg|Citadel, as viewed from outside via Pan Cam.
File:halo3_120904966_Medium.jpg|The bottom of Citadel.
</gallery>

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

{{Levels|H3|mode=yes}}
[[Category:Mythic Map Pack]]