Editing Constructor Sentinel

{{Era|Forerunner|HCW|Post}}

|name=Constructor

|role=Repair [[Forerunner]] facilities

|length=

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The '''Constructor''' is a specialized [[Sentinel]] whose main function is to repair damaged [[Forerunner]] structures.<ref name="sacred icon">'''[[Halo 2]]''', campaign level ''[[Sacred Icon]]''</ref> [[Aggressor Sentinel|Aggressor]]s will come to their aid if they are attacked, as they have no weapon systems of their own to defend themselves.{{Ref/Reuse|sacred icon}}

Constructors are drones programmed to repair any damaged [[Forerunner]] structure they can find, using low-tuned energy beams similar to [[Sentinel beam]]s. These beams are fired from either the top half, the middle or the bottom half of the Constructor.{{Ref/Note|In ''Halo 2'', Constructors of Installation 05 fire their beam from their upper body, in ''Halo 3'', the Constructors of Installation 00 fire their beam from their lower body, and in ''Halo 5: Guardians'', the Constructors fire their beam from the middle of their body.}} The beams can also be used to open [[Cryptum]]s<ref>'''Halo 5: Guardians''', campaign level, ''[[Guardians]]''</ref> or lower the shields on [[piston]]s, allowing them to access the tunnel networks built within the [[Sentinel Wall]].{{Ref/Reuse|sacred icon}}<ref name="isolation">'''[[Halo 3]]''', multiplayer level ''[[Isolation]]''</ref> Although weak, they can harm an organism if they come in contact with it.

Constructors can also play the role of a security grid. When a Constructor is attacked, a signal is automatically sent to [[Sentinel launcher]]s to begin deploying Aggressors. For this reason, they can form an excellent security perimeter. With no weapons systems, the Constructors rely on Aggressors when threatened.

A way to attract a Constructor is to damage something in the Forerunner facility they are in. Once attracted, they appear to require little prompting to follow someone seeking their assistance as [[Fireteam Osiris]] simply had to state that they had a task for a Constructor to get it to follow them with no other obvious methods of coercion being used.<ref>'''[[Halo 5: Guardians]]''', campaign level ''[[Enemy Lines]]''</ref> Constructors can be programmed for other tasks such as awakening a [[Guardian]] with little difficulty, being reprogramed within minutes rather than hours or days as might be expected to happen with other technology.<ref>'''[[Halo 5: Guardians]]''', campaign level ''[[Before the Storm]]''</ref>

[[File:H2A SentinelBois.png|250px|right|thumb|A Constructor alongside two Aggressors on ''Sacred Icon''.]]

In the level ''[[Quarantine Zone]]'', they appear at the end of the level when the player fights the [[Flood]]-controlled [[M808B Scorpion|Scorpion]] and [[Type-26 Wraith|Wraith]]s along with many Flood [[combat forms]] using Covenant [[Type-32 Ghost|Ghosts]] and two [[Enforcer]]s fight against the Flood near a downed [[UNSC]] [[D77-TC Pelican|Pelican]] dropship. If the player watches one of the large and deep trenches, a large cloud of Constructors can be seen flying off into the sky.

In ''[[Halo 3]]'', they appear in the level ''[[The Ark (level)|The Ark]]'', where they are seen inside Forerunner structures including inside the [[Sentinel Wall|wall]] to the [[Cartographer]] and the map room itself.

In ''[[Halo 5: Guardians]]'', Constructors play a significant role in the campaign. In the level ''[[Unconfirmed]]'', [[Fireteam Osiris]] encountered Constructors in the mines on [[Meridian]] near where the [[Guardian]] was. Though the team noted that the Constructors were similar in design to a [[Monitor]], they were non-communicative and uninterested in the humans so [[Jameson Locke]] ordered his team to keep an eye on the Constructors but to otherwise ignore them.

Later, in the level ''[[Enemy Lines]]'', [[Fireteam Osiris]] is tasked with acquiring a Constructor in order to activate the [[Guardian]] on [[Sanghelios]]. Osiris is able to find one in a support facility for the Guardian, attracting its attention by damaging a terminal in the facility. Dr. [[Catherine Halsey]] is then able to use Forerunner technology in the area to program the Constructor with the recording made of the Guardian on [[Meridian]]. Though Halsey thought it would take hours to days, the Constructor is programed quickly and flies off to awaken the Guardian.

*On [[Isolation]] and [[Construct]] the Constructors can be sniped, though their small size and constant movement make this difficult.

*A player can get up close and even touch a Constructor on Construct. First, they must overload the map with [[TR/9 Antipersonnel Mine|trip mines]]. When the map is overloaded the player must go through the hole where the purple lift beams are projected. A player then can easily be touched by a Constructor but cannot be moved. They can be destroyed, mainly with a [[M6 Spartan Laser|Spartan Laser]] or a [[M7057 flamethrower|Flamethrower]]. Note that even when one is destroyed another will immediately replace it in the same place. So in other words, you will see the debris from a destroyed Constructor fall from a full and complete one.

File:H2A-daniil-kuksov-constructor.png|Concept art of the Constructor for ''[[Halo 2: Anniversary]]''.