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| {{Status|Canon}} | | {{era|Forerunner|HCW}} |
| {{Forerunner infobox | | {{cleanup}} |
| |name=Constructor Sentinel | | {{Forerunner Infobox |
| |image=[[File:H2A Campaign ConstructorTransparent.png|150px]]<br>[[File:H5G-Constructor.png|150px]]<br>Two alternate chassis designs for the Constructor. | | |name= Constructor |
| |role=*Construction{{Ref/Book|Id=Enc22P327|Enc22|Page=327}} | | |image= [[File:H3_Constructor.jpg|250px]] |
| *Maintenance{{Ref/Reuse|Enc22P327}}
| | |role= Repair damages to [[Forerunner]] facilities. |
| |length={{Convert|16.4|in|cm|sp=us|disp=flip}}{{Ref/Reuse|Enc22P327}}
| | |size= Small (around the size of a Covenant [[Type-25 Directed Energy Pistol|Plasma Pistol]] and a [[Type-25 Directed Energy Rifle|Plasma Rifle]]) |
| |width={{Convert|11.6|in|cm|sp=us|disp=flip}}{{Ref/Reuse|Enc22P327}}
| | |armament=[[Construction beam|Small green beam]] |
| |height={{Convert|24.1|in|cm|sp=us|disp=flip}}{{Ref/Reuse|Enc22P327}}
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| |mass=
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| |armament=
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| *Low-tier [[Auspex array|ultrascanner]]{{Ref/Reuse|Enc22P327}}
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| *[[Smartmatter loom]]{{Ref/Reuse|Enc22P327}}
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| *[[Reconstitution emitter]]{{Ref/Reuse|Enc22P327}}
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| *[[Impulse drive]]{{Ref/Reuse|Enc22P327}}
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| |armor= | | |armor= |
| }} | | }} |
| {{Quote|They are Sentinels, but they were built by the Forerunners to exact repair where needed.|[[Shipmaster]] [[N'tho 'Sraom]]{{Ref/Novel|Id=HitD15|HitD|Chapter=15}}}}
| | '''Constructors''' are small flying machines built by the [[Forerunner]]s. Their only function is to repair [[Forerunner]] structures that appear to be damaged.<ref name="sacred icon">'''[[Halo 2]]''', campaign level ''[[Sacred Icon]]''</ref> [[Sentinel]]s will come to their aid if they are attacked, as they have no weapon systems of their own to defend themselves.<ref name="sacred icon"/> |
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| '''Constructor Sentinels''' are a specialized variant of [[Sentinel]] whose primary function is to repair damaged [[Forerunner]] structures.{{Ref/Reuse|Enc22P327}}{{Ref/Reuse|HitD15}}{{Ref/Level|Id=sacred icon|H2|Sacred Icon}}
| | The [[Construction beam|Construction Beam]] is fired from the top half of the Constructor, however the constructors on [[Installation 00|The Ark]] fire their beams from the bottom. Sentinel Constructors also play another role as a security grid. When a Constructor is attacked, an unknown signal causes the [[Sentinel launcher|Sentinel Launchers]] to begin deploying Sentinels. Constructors form an excellent security perimeter. |
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| ==Overview==
| | ==Design details== |
| ===Design details===
| | [[File:Constructor.jpg|left|thumb|A Constructor as seen in ''[[Halo 2]]''.]] |
| Constructor Sentinels have tall and narrow chassis, relative to their overall smaller size compared to most [[Sentinel]]s. They feature two primary housings, with one located directly above the other, often joined by a connecting arm. Atop their upper housing is a pair of ear-like appendages.{{Ref/Reuse|Enc22P327}}{{Ref/Reuse|sacred icon}}{{Ref/Level|Id=EnemyLines|H5G|Enemy Lines}} Perhaps the most integral feature of Constructor Sentinels are their small [[reconstitution emitter]]s,{{Ref/Reuse|Enc22P327}} which can be located in its upper housing, lower housing, or between the two, depending on the variant.{{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.}} Each Constructor Sentinel also features a tiny [[smartmatter]] [[Smartmatter loom|loom]] and a low-tier [[Auspex array|ultrascanner]], as well as an [[impulse drive]] for locomotion.{{Ref/Reuse|Enc22P327}}
| | '''Constructors''' are devices--similar to [[Sentinels]] in design--that mainly repair damage to any [[Forerunner]] structure they can find, using weak energy beams similar to [[Sentinel Beam]]s. The beams are small and blue, and are harmful if they come into contact with an organism. This is unknown whether they will harm the Constructor itself, though. |
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| Constructor Sentinels are manufactured in [[Ferrarius Assembler Vats]] within dedicated [[Sentinel manufacturing facility|manufacturing facilities]] on [[Forerunner]] installations and worlds.{{Ref/Reuse|Enc22P327}} | | [[Sentinels]] will come to a Constructor's aid if it is being attacked, as Constructors are ill-suited for combat, having no weapon systems of their own. However, their beams can cause damage to the player if he gets caught in its path (on Legendary difficulty their beams can kill in seconds). They also use their beams to lower the shields on [[Piston]]s, allowing them to move throughout the [[Sentinel Wall]] quickly.<ref name="sacred icon"/><ref name="isolation">'''[[Halo 3]]''', multiplayer level ''[[Isolation]]''</ref> |
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| ===Operation=== | | ==Appearance== |
| [[File:H2A ConstructorAndPiston.png|250px|right|thumb|A Constructor interacting with a [[Holography|holographic]] display on a piston.]]
| | The Constructors first appeared in the beginning of [[The Library]] although only one or two can be seen floating around the corridors and into the air shafts. They also appeared in the opening moments of "Sacred Icon", where a swarm of them flies about trying to fix the platform you start on, then moves away further into the [[Sentinel Wall]]. They don't really affect anything in game, they show red on your reticule and you may shoot them if you like, although they won't bother you. If you jump in front of one in the beginning of "Sacred Icon", you can get hurt, though very little, by their thin beams depending on the difficulty level you are playing on. |
| These small utility drones operate in coordinated groups to diagnose basic faults, weave minor repairs into existing Forerunner structures, and retune [[hard light]] structural elements. Vast numbers of Constructor Sentinels may cooperate with [[Strato-Sentinel]]s to complete large-scale repair operations.{{Ref/Reuse|Enc22P327}} [[Steward Sentinel]]s maintain their own complement of Constructor Sentinels for repair, preventing deterioration and compromise of the much larger Sentinel.{{Ref/Book|Id=Enc22P328|Enc22|Page=328}} For the purpose of repair, the Constructor's primary tool is its small reconstitution emitter. The beams fired from the reconstitution emitters can also be used to interact with Forerunner technology, allowing them to open [[Cryptum]]s{{Ref/Level|Id=Guardians|H5G|Guardians}} or lower the shields on [[piston]]s. The latter functionality allows the Constructor Sentinels to access the tunnel networks built within [[Sentinel Wall]]s.{{Ref/Reuse|sacred icon}}{{Ref/Map|Id=Isolation|H3|Isolation}} Although low in power output, one of these beams can cause harm if an organism if its crosses the beam's path.{{Ref/Reuse|sacred icon}}
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| One or more Constructors will often be summoned if something within their facility is damaged. Once attracted, they appear to require little prompting to follow someone seeking their assistance. In one instance, a member of a [[Spartan-IV]] [[Fireteam Osiris|fireteam]] 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/Reuse|EnemyLines}} Constructors can be programmed for other tasks, such as awakening a [[Guardian Custode]], with little difficulty, being reprogrammed within minutes.{{Ref/Level|Id=BeforeTheStorm|H5G|Before the Storm}}
| | ==Gameplay== |
| | In [[Halo 2|''Halo 2'']], they first appear in [[Sacred Icon|The Sacred Icon]], exactly beside where Arbiter stands after he was dropped off from his Phantom. They were repairing the destroyed edge and left after a while. Attacking them will result in being attacked by Sentinels. Then in the [[Quarantine Zone (level)|Quarantine Zone]] level, they appear at the end of the level when the player fights [[The Flood|Flood]]-controlled [[M808B Main Battle Tank|Scorpion]] and [[Type-26 Assault Gun Carriage|Wraith]] tanks along with many Flood using Covenant [[Type-32 Rapid Assault Vehicle|Ghosts]] and a [[Type-46 Infantry Support Vehicle|Spectre]], and two Sentinel [[Enforcer]]s fight against the Flood near a downed [[Human]] [[D77-TC Pelican|Pelican]] dropship.<ref>''[[Quarantine Zone (level)|Quarantine Zone]]''</ref> During all this chaos, if the player watches one of the large and deep trenches, a large cloud of Constructors fly off into the sky. |
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| 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 form an excellent security perimeter. However, with no weapons systems of their own, the Constructors must rely on Aggressors when threatened.{{Ref/Reuse|sacred icon}} | | In ''[[Halo 3]]'', Constructors appear in some levels based on the Ark. In the campaign, 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 multiplayer maps [[Isolation]] and [[Construct]], small groups of Constructors can be seen flying around in the distance. Also, in ''Halo 3'', a small easter egg can be witnessed if a player watches one of the groups of constructors on the multiplayer map [[Construct]]. They will fly normally for a while, but when they near a wall, they will hop like bunnies, before passing out of the map, and to a destination unknown, possibly re-spawning on the other side. You can destroy them and the [[Sentinel]]s in the level. |
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| ==Variants== | | == Trivia == |
| Multiple distinct variants of Constructor Sentinel exist. Presumably, each Forerunner facility has its own unique variation of the Constructor Sentinel, as is the case with the Aggressor Sentinel.{{Ref/Reuse|Enc22P327}}
| | *[[Sentinel]]s have been seen using the [[Construction beam|Construction Beam]] in the level [[The Arbiter]]. |
| <gallery>
| | *In the ''[[Halo 2]]'' level Sacred Icon, Constructors will open the Pistons for you if they are near them. |
| File:H2-SentinelConstructor.png|A chassis of the Constructor Sentinel encountered on [[Installation 05]]. This variant's reconstitution emitter is located in its upper housing.
| | *On the level [[Sacred Icon]], where you find the Grunt and the Jackal, if you look off the side into the chasm you will see an endless stream of constructors coming out of a bright hole in the wall. |
| File:H3-SentinelConstructor.png|A chassis of the Constructor Sentinel encountered on [[Installation 00]] and [[Partition]]. This variant's reconstitution emitter is located in its lower housing.
| | *On [[Isolation]] and [[Construct]] the Constructors can be sniped, though their small size and constant movement make this difficult. |
| File:H5G-Constructor.png|A chassis of the Constructor Sentinel encountered on [[Sanghelios]] and [[Genesis]]. This variant's reconstitution emitter is located between its upper and lower housings.
| | *In ''[[Halo 2]]'' and ''[[Halo 3]]'', even though Constructors do not attack you, your weapon reticule will turn red when passed over them. |
| </gallery>
| | *A player can get up close and even touch a Constructor on [[Construct]]. First he/she 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 easy be touched by a Constructor but cannot be moved. They can be destroyed, mainly with a [[M6 Grindell/Galilean Nonlinear Rifle|Spartan Laser]] or a [[M7057/Defoliant Projector|Flamethrower]]. Note that even when one is destroyed another immediately replaced 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. |
| | *In [[Halo 2]], the Constructor's beam light is on the top part of its structure, whereas in [[Halo 3]] the light is on the bottom half. |
| | *Constructors appear to be able to compact into a smaller form, as their top and bottom halves appear to latch together. However, this has yet to be seen. |
| | *On the level [[Sacred Icon]], Constructors will scurry away from you if you approach them. If you attack them though, nearby Sentinels will attack you. |
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| ==In-game information== | | == Appearances == |
| ===''Halo 2''===
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| [[File:H2A SentinelBois.png|250px|thumb|A Constructor alongside two Aggressors on ''Sacred Icon''.]]
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| Constructors make their first appearance in the ''[[Halo 2]]'' level ''[[Sacred Icon]]'', exactly beside where [[Thel 'Vadamee]] stands after he is dropped off from his [[Phantom]]. They are repairing the destroyed edge and will leave after a while, or if the Arbiter approaches them. Attacking them will result in being attacked by Aggressors. In the level ''[[Quarantine Zone]]'', they appear at the end of the level when the player fights the [[Flood]]-controlled [[M808B Scorpion|Scorpion]] and [[Zurdo-pattern Wraith|Wraith]]s along with many Flood [[combat forms]] using Covenant [[Karo'etba-pattern 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.
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| ===''Halo 3''===
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| 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. They can be also found in the [[multiplayer]] maps of [[Isolation]] and [[Construct]], where they can be seen flying around in the distance. With the addition of the ''[[Halo Online]]'' multiplayer map [[Edge]] to the ''[[Halo: The Master Chief Collection]]'', a flock of Constructors can be found maintaining the databanks in the rear of the Forerunner structure where the map is set.
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| ===''Halo 5: Guardians''===
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| 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 programmed quickly and flies off to awaken the Guardian. In the final mission ''[[Guardians]]'', [[Genesis]] [[Monitor]] [[031 Exuberant Witness]] summons a swarm of Constructors to retrieve the [[Cryptum]] that [[Blue Team]] was trapped in by [[Cortana]] after Osiris manages to restore control over Genesis to Exuberant Witness. Under the control of Exuberant Witness, they use their beams to open the Cryptum and free the Spartans of Blue Team.
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| ==Trivia==
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| *On Isolation and Construct, the Constructors can be sniped, though their small size and constant movement make this difficult.
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| *In ''Halo 2'' and ''Halo 3'', even though Constructors do not attack you, your weapon reticule will turn red when passed over them.
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| *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.
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| ==Gallery==
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| {{Linkbox|gallery=yes|gallerypage=Images of Constructor Sentinel}}
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| <gallery>
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| File:Constructor.jpg|A Constructor on [[Installation 05]] in ''Halo 2''.
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| File:Constuctorz.jpg|Rear view of a Constructor in ''Halo 2''.
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| File:HTMCC-H2 Constructor&Piston.png|A Constructor interacting with a piston's holographic display in ''Halo 2''.
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| File:H3_Constructor.jpg|A Constructor on [[Installation 00]] in ''Halo 3''.
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| File:HTMCC-H3 ConstructorPair.png|A pair of Constructors on Partition on the map Edge in ''Halo: The Master Chief Collection''.
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| File:HTMCC-H3 ConstructorScan.png|A Constructor uses a scanner-like function in ''Halo: The Master Chief Collection''.
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| File:H2A_SentinelConstructor_Concept.jpg|Concept art of the Constructor for ''[[Halo 2: Anniversary]]''.
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| File:H2A ConstructorSacredIcon.png|A Constructor on Installation 05 in ''Halo 2: Anniversary''.
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| File:H5G_Constructor_Concept.jpg|Concept art of the Constructor for ''Halo 5: Guardians''.
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| File:H5G - damaged Constructor.png|A damaged Constructor on [[Genesis]] in ''[[Halo 5: Guardians]]''.
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| </gallery>
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| ==List of appearances==
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| *''[[Halo 2]]'' {{1st}} | | *''[[Halo 2]]'' {{1st}} |
| *''[[Halo 3]]'' | | *''[[Halo 3]]'' |
| *''[[Halo 2: Anniversary]]''
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| *''[[Halo: Hunters in the Dark]]''
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| *''[[Halo 5: Guardians]]''
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| *''[[Halo Wars 2]]'' {{Mo}}
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| *''[[Halo: Epitaph]]''
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| ==Notes==
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| {{Ref/Notes}}
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| ==Sources==
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| {{Ref/Sources}}
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| {{Forerunner|sentinel}}
| | == Sources == |
| | <references/> |
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| [[Category:Sentinels]] | | {{Forerunner2}} |
| | [[Category:Forerunner technology]] |
