Aggressor Sentinel: Difference between revisions

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{{era|H1|H2|H3|HW|TF|GOO|LE|IRIS}}
{{era|H1|H2|H3|HW|TF|GOO|LE|IRIS}}
{{Forerunner Infobox
{{Forerunner Infobox
|image            = [[Image:Halo Wars Sentinel.jpg|290px]]
|image            = [[File:Halo Wars Sentinel.jpg|290px]]
|name              = Sentinel
|name              = Sentinel
|purpose          = Combat and Defense
|purpose          = Combat and Defense
|strength          = Moderate
|strength          = Moderate
|first seen        = September 21 2552
|first seen        = September 21, 2552
|aprox. size = {{Convert|2.48|m|ft}}<ref>[http://nikon.bungie.org/misc/sloftus_scalecomparison/?display=Flood '''Halo.Bungie.Org''': Scale Comparison]</ref>  
|aprox. size = {{Convert|2.48|m|ft}}<ref>[http://nikon.bungie.org/misc/sloftus_scalecomparison/?display=Flood '''Halo.Bungie.Org''': Scale Comparison]</ref>  
|primary          = [[Sentinel Beam]]
|primary          = [[Sentinel Beam]]
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Sentinels are created at [[Sentinel Constructor Factory|Sentinel Production Facilities]]<ref>[[Halo Encyclopedia]] Chapter 8, page 226</ref>, massive floating platforms that are located on every Halo Installation. These Facilities produce all types of Sentinels when facing either a Flood outbreak or an external threat to a Halo Installation or Construct. These massive assembly lines at maximum performance can produce Sentinels at a very fast rate to either supplement existing Forerunner defenses or to replace those destroyed for whatever reason. Sentinel Production Facilities are not limited to just the Halo Installations, Production Facilities are located on every Forerunner Construct that relies on Sentinels for guarding, although these facilities are different in appearance and may be either ground or mobile based platforms.
Sentinels are created at [[Sentinel Constructor Factory|Sentinel Production Facilities]]<ref>[[Halo Encyclopedia]] Chapter 8, page 226</ref>, massive floating platforms that are located on every Halo Installation. These Facilities produce all types of Sentinels when facing either a Flood outbreak or an external threat to a Halo Installation or Construct. These massive assembly lines at maximum performance can produce Sentinels at a very fast rate to either supplement existing Forerunner defenses or to replace those destroyed for whatever reason. Sentinel Production Facilities are not limited to just the Halo Installations, Production Facilities are located on every Forerunner Construct that relies on Sentinels for guarding, although these facilities are different in appearance and may be either ground or mobile based platforms.


===Combat===  
===Combat===
The Forerunners refer the Sentinels as "''our very basic countermeasures,''" and are the first automated defense systems to assist a situation and generate a proper response protocol. While Sentinels are strong enough to handle a situation they are, however, more of a supplement rather then a reliable combat system. The Sentinels weapons system are limited and not as powerful as some of the other Forerunner weapons employed against the Flood, and can only hold them at bay for a limited amount of time.  
The Forerunners refer the Sentinels as "''our very basic countermeasures,''" and are the first automated defense systems to assist a situation and generate a proper response protocol. While Sentinels are strong enough to handle a situation they are, however, more of a supplement rather then a reliable combat system. The Sentinels weapons system are limited and not as powerful as some of the other Forerunner weapons employed against the Flood, and can only hold them at bay for a limited amount of time.  


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First appearing in ''Halo: Combat Evolved'', the Sentinels play an important part in aiding the Master Chief through the [[Library]] as he attempts to recover the [[Activation Index]]. Once learning of Halo's true purpose the Sentinels become an enemy to Master Chief as he attempts to destroy Halo.
First appearing in ''Halo: Combat Evolved'', the Sentinels play an important part in aiding the Master Chief through the [[Library]] as he attempts to recover the [[Activation Index]]. Once learning of Halo's true purpose the Sentinels become an enemy to Master Chief as he attempts to destroy Halo.


In ''Halo 2'', Sentinels, at one point, operated automated facilities, such as [[Threshold]]'s [[Gas Mine]], for "untold centuries". Evidence of this remains; some Sentinels have been seen repairing [[Covenant]] vessels as the Arbiter enters the main hangar with the [[Seraph]] fighter, a Sentinel fires a green beam at the Seraph -- the same beam as the ones used by [[Constructor]]s in [[Sacred Icon (Level)|Sacred Icon]].
In ''Halo 2'', Sentinels, at one point, operated automated facilities, such as [[Threshold]]'s [[Gas Mine]], for "untold centuries". Evidence of this remains; some Sentinels have been seen repairing [[Covenant]] vessels as the Arbiter enters the main hangar with the [[Seraph]] fighter, a Sentinel fires a green beam at the Seraph—the same beam as the ones used by [[Constructor]]s in [[Sacred Icon (Level)|Sacred Icon]].


Sentinels in ''Halo 3'' are also seen on the [[Ark]] and aids the Chief as he makes his way towards the cartographer After the death of 343 Guilty Spark the Sentinels once again become an enemy. A different variant of Sentinels have also been seen on [[Onyx]]; and serve as a shield to protect anything without proper clearance from getting near the Shield World.
Sentinels in ''Halo 3'' are also seen on the [[Ark]] and aids the Chief as he makes his way towards the cartographer After the death of 343 Guilty Spark the Sentinels once again become an enemy. A different variant of Sentinels have also been seen on [[Onyx]]; and serve as a shield to protect anything without proper clearance from getting near the Shield World.
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==Trivia==
==Trivia==
*In ''[[Halo: Ghosts of Onyx|Ghosts of Onyx]]'', an Onyx Sentinel approaches [[Ash-G099|Ash]], one of Kurt's [[Spartan-IIIs]], and attempts to communicate with him, first in Latin, then in English. Later in the book, Dr. Halsey confirms that this drone was a Sentinel, therefore proving that the Sentinels of [[Onyx]] have a slightly more advanced [[AI]] than those of any other Installations (besides [[Monitors]]).
*In ''[[Halo: Ghosts of Onyx|Ghosts of Onyx]]'', an Onyx Sentinel approaches [[Ash-G099|Ash]], one of Kurt's [[Spartan-IIIs]], and attempts to communicate with him, first in Latin, then in English. Later in the book, Dr. Halsey confirms that this drone was a Sentinel, therefore proving that the Sentinels of [[Onyx]] have a slightly more advanced [[AI]] than those of any other Installations (besides [[Monitors]]).
*There is a lone [[Needler Sentinel]] found on the level ''[[Quarantine_Zone (Level)|Quarantine Zone]]''. It fires sporadic [[Needler]] rounds and drops a Needler when destroyed. The Sentinel is non-canonical and is a development leftover.
*There is a lone [[Needler Sentinel]] found on the level ''[[Quarantine Zone (Level)|Quarantine Zone]]''. It fires sporadic [[Needler]] rounds and drops a Needler when destroyed. The Sentinel is non-canonical and is a development leftover.
*[[Chris Hughes]] created a crablike machine with many animating parts that gave the Sentinel life and character.<ref>'''[[The Art of Halo]]''', ''page 44''</ref>
*[[Chris Hughes]] created a crablike machine with many animating parts that gave the Sentinel life and character.<ref>'''[[The Art of Halo]]''', ''page 44''</ref>
*On certain levels in Halo 3, it is possible to 'surf' on Sentinels, by standing on the furthest possible point from the front of the Sentinel. This is easiest on The Ark, at the point where the light bridge must be opened for the Scorpions and Warthogs. The Sentinel will, eventually, hover over the edge, holding you up 50% of the time. Remaining on top of the Sentinel allows you to reach inaccessible locations.
*On certain levels in Halo 3, it is possible to 'surf' on Sentinels, by standing on the furthest possible point from the front of the Sentinel. This is easiest on The Ark, at the point where the light bridge must be opened for the Scorpions and Warthogs. The Sentinel will, eventually, hover over the edge, holding you up 50% of the time. Remaining on top of the Sentinel allows you to reach inaccessible locations.
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== Gallery ==
== Gallery ==
<gallery>
<gallery>
Image:Sentinel.jpg|A Sentinel in ''[[Halo: Combat Evolved]]''.
File:Sentinel.jpg|A Sentinel in ''[[Halo: Combat Evolved]]''.
File:Sentinalshield.jpg|A Sentinel's shielding as seen in ''Halo: CE''.
File:Sentinalshield.jpg|A Sentinel's shielding as seen in ''Halo: CE''.
File:SilverSentinal02.jpg|A pair of ''Sentinels'' in ''[[Halo 2]]''.
File:SilverSentinal02.jpg|A pair of ''Sentinels'' in ''[[Halo 2]]''.