Editing ONI Alpha Site (location)

{{Status|Canon}}
{{Disambig header|the ONI facility|other uses|Alpha Site (disambiguation)}}
{{Base infobox
|name=ONI Alpha Site
|image=[[File:Alphabase new 1.png|300px]]
|location=[[New Mombasa Sector 10|Sector 10]], [[New Mombasa]], [[Republic of Kenya|Kenya]], [[Earth]]
|purpose=;Official: [[ONI]] [[East African Protectorate|EAP]] headquarters{{Ref/Reuse|vis}}
;Confidential: Data aggregator for nearby [[Portal at Voi|Forerunner structure]]{{Ref/Book|Id=vis|[[Halo: The Essential Visual Guide]]|Page=132}}
|length=
|width=
|height=
|surface=
|armament=
|complement=
|built=
|destroyed=[[2552#October|October 20, 2552]]
|usage=2552: [[Battle of Mombasa]]
|controlledby=[[Office of Naval Intelligence]]
*[[ONI Section Two|Section Two]]<ref name="fieldoperations">''[[Field Operations Guide FM 90-10-140]]''</ref>
|notable=}}
{{Quote|MUNICIPAL ALERT!}}
{{Quote|The Office of Naval Intelligence (ONI) maintains a facility inside the New Mombasa city limits. Be a good neighbor, and respect the ONI security perimiter!|[[Superintendent]]<ref name="fieldoperations"/>}}

'''ONI Alpha Site''' was a [[United Nations Space Command|UNSC]] [[Office of Naval Intelligence]] facility located in an isolated compound within [[New Mombasa Sector 10|Sector 10]] the [[city]] of [[New Mombasa]], [[Kenya]].{{Ref/Level|Id=site|[[Halo 3: ODST]]|[[ONI Alpha Site (Level)|ONI Alpha Site]]}} Officially, it served as the ONI's headquarters in the [[East African Protectorate]]; secretly, it was also used to aggregate data from the [[The Portal|Forerunner artifact]] below it.{{Ref/Reuse|vis}}

==Overview==
===Layout===
[[File:H3ODST AlphaSite Overhead.png|thumb|left|200px|Overhead view of Alpha Site's compound.]]
The complex was built on an artificial island inside a walled lake. The island was accessible by a single [[Bridge (structure)|bridge]]. A walled security zone encompassed most of the island. The main cubic structure occupied one end of the island on the opposite to the bridge.{{Ref/Reuse|site}}

The main building was composed of an [[Onyx (material)|onyx]] facade.{{Ref/Reuse|vis}} It had a large shaft in its center, which connected all the way to the [[Superintendent]]'s [[New Mombasa Data Center|data center]] deep below,{{Ref/Reuse|datahive}} ending at the top floor of the building. Three sides of the shaft were occupied by [[elevator]]s. The elevators were accessible through the central platform of the building, suspended over the central shaft. The numerous offices in the building were accessible through the elevators. On the roof, there were several landing pads.{{Ref/Reuse|site}}

The opposite side to the entrance on the ground floor featured open sides with walkways and balconies suspended over the pool of water below. A [[ONI memorial|memorial]] to deceased ONI personnel was located in this area.{{Ref/Reuse|site}}

==History==
===Human-Covenant War===
{{Main|Human-Covenant War}}
[[File:Alphas destro.png|thumb|250px|The [[Superintendent]] witnessing the destruction of Alpha Site.{{Ref/Reuse|site}}]]
The facility remained in UNSC hands part way through the [[Battle of Mombasa]], despite the Covenant's efforts to breach the facility in order to obtain information on the Forerunner artifact underneath.{{Ref/Reuse|vis}} The site was first primarily defended by a [[New Mombasa Police Department]] detachment. Several hours after the [[Prophet of Regret]]'s departure from the [[city]], the police officers were joined by [[Orbital Drop Shock Troopers]] [[Mickey|Michael "Mickey" Crespo]] and [[Dutch|Taylor H. "Dutch" Miles]]; the troopers were separated from their [[Alpha-Nine|squad]].{{Ref/Reuse|site}}

Officers and troopers finished preparations to demolish the access bridge as [[Covenant]] forces, including [[Zurdo-pattern Wraith|Wraiths]], began to cross. The bridge's destruction forced the assault to rely on troops ferried in by [[Kez'katu-pattern Phantom|Phantoms]]. The defenders fell back to the security zone before making a fighting withdrawal into the main structure. The destruction of the bridge and the ensuing battle led to heavy casualties on both sides.{{Ref/Reuse|site}}

The local NMPD commander ordered the structure destroyed to deny the enemy both ONI's data and access to the Superintendent. The structure was rigged with remote-detonated charges. A police [[D77C-NMPD Pelican Dropship|Pelican]] was dispatched to evacuate remaining UNSC troops. Officers and troopers held inside the structure while they waited for the transport. They finally made their way to the roof by elevator where they were picked up for the trip to [[NMPD headquarters]]. Once safely away, Crespo detonated the charges and demolished the building.{{Ref/Reuse|site}} Six hours later, when the Rookie viewed the site from the other side of the destroyed bridge, it was still burning.{{Ref/Level|Halo 3: ODST|[[Mombasa Streets]]}}

During the battle, [[Yanme'e]] attacked in the elevator and were killed.{{Ref/Reuse|site}} It was later revealed that there was a Drone hive in the tunnels below the building where the [[Superintendent]]'s data center was and destroying the building woke up the whole hive, making it much harder for Dare and the [[Rookie]] to reach the data core later.{{Ref/Level|Id=datahive|ODST|[[Data Hive]]}}

==Gameplay==
Three ''[[Halo 3: ODST]]'' [[Firefight#Maps|Firefight maps]] take place in or in vicinity of the base: [[Security Zone]] is located on the hill in front of the main building, [[Rally Point (Level)|Rally Point]] is at the entrance to the compound in [[New Mombasa Sector 10|Sector 10]], and [[Alpha Site]] is set in the interior of the main building.

When viewing the structure during [[Mombasa Streets]], you may notice one or two [[Kez'katu-pattern Phantom|Phantoms]] circling above it. These will continue to do so until you leave and unload the sector.

Aside from Mombasa Streets and ONI Alpha Site, this building can also be seen in the background on the levels [[NMPD HQ (Level)|NMPD HQ]] and [[Coastal Highway]].

== Gallery ==
<gallery widths="150">
File:H3ODST AlphaSite Concept 1.png|Various concepts of the main building.
File:H3ODST AlphaSite Lobby Concept.jpg|Concept art of Alpha Site's lobby.
File:H3ODST AlphaSite Boardwalk Concept.jpg|Concept art of Alpha Site's boardwalks.
File:H3ODST_AlphaSite_Concept_2.jpg|An early concept showing a different version of the facility's surroundings, without the artificial lake and walls.
File:H3ODST_AlphaSite_Perimeter_Concept.jpg|A near-final design of the structures lining the perimeter wall.
File:H3ODST_Sector10_Rally_Concept.jpg|A concept of UNSC forces rendezvousing at the facility entrance.
File:H3ODST_AlphaSite_Above_Concept.png|The complex, as seen from above.
File:Sector_10_bridge.jpg|The bridge leading to the main complex.
File:H3ODST_ONIBldgCinematic.jpg|Alpha Site after its destruction.
File:ONI Alpha Site dawn.jpg|Alpha Site the morning after it was destroyed.
File:ODST Firefight AlphaSite03.jpg|The central lobby of the main facility.
File:ODST Firefight RallyPoint-Day environment.jpg|The entrance to the base's perimeter.
File:Oni alpha site nmpd.jpg|Alpha Site smoking, seen from the [[NMPD headquarters]]. 
</gallery>

==List of appearances==
*''[[Halo 3: ODST]]'' {{1st}}
*''[[Halo: New Blood]]''

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

{{MombasaLocales}}
[[Category:ONI bases]]