Editing Forerunner automated turret

{{Era|Forerunner|HCW}}

{{Center|Were you looking for the ''Halo 4'' armor ability, [[Z-2500 autosentry]]?}}

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|ammotype=[[Plasma]] beam{{Ref/Book|Id=Encyclopedia|ENC|Page=339}}

The Forerunner '''automated turret''', sometimes referred to as the '''autoturret''' and '''auto-turret''', is a [[Forerunner]] construct that was used by [[Builder Security]] similar in design to an [[Aggressor Sentinel]]. As its name implies, the autoturret acts as an automatic antipersonnel weapon. It is typically deployed by a user in a single location to act in a defensive measure. It hovers in place above the ground and will fire upon any enemy targets that come within range of its sensors. It fires blue, beam-based [[plasma]] projectiles that are naturally hot enough to melt steel.{{Ref/Reuse|Encyclopedia}} These autoturrets were encountered and used by [[John-117]] during the [[Battle of Installation 00]].

The autoturret appears sporadically throughout the ''Halo 3'' campaign on the levels The Ark, The Covenant and Halo. When deployed, it fights on the side of the [[Sentinel]]s, targeting any enemies the Sentinels would otherwise target - primarily [[Covenant]] and [[Flood]] forces. On the final level however, the player can deploy two autoturrets outside the [[control room]] of [[Installation 08]] to assist in fighting Flood. Following the boss fight against [[343 Guilty Spark]] inside the control room, the player can exit the building to find that - like the Sentinels - the autoturrets are now hostile and will fire on the player. Similarly, the turret will fire on Flood forces even when they are allied with the player during the level The Covenant.

When deployed, the turret hovers in place in a stationary position, and cannot move under its own power - requiring it to be placed facing enemies for it to be able to fire. The front of the weapon has a small lens that can rotate to aim the beam slightly to give the weapon a limited cone of fire. When firing, the weapon has a short three second charge time before emitting an extremely powerful laser similar to that of the [[Sentinel beam]]. This beam fires for a short duration, during which time it is able to kill most infantry enemies or strip the [[Jiralhanae power armor|armor]] of more deadly enemies such as [[Jiralhanae Chieftain|Chieftains]]. The beam has a large knockback effect on flying enemies such as [[Jiralhanae Jumper|jump-pack Brutes]]. As it is an AI type, the turret does get stronger as the game's difficulty is raised. When the player is declared as an enemy, the turret is noticeably more powerful, able to acquire targets much quicker and kill the player extremely quickly.

[[File:H3_ForerunnerAutoTurret_Foundry.png|thumb|right|A Spartan deploying an autoturret on Foundry.]]

The autoturret was not intended to combat vehicles, as its main appearances in the ''Halo 3'' campaign are in areas predominantly defined by infantry encounters. As such, the turret has an inconsistent behaviour when firing at player-operated vehicles. The [[Elephant]] is completely immune to the turret's beam, as with all weaponry, and for the most part the [[Scorpion]] tank does not take health damage when fired upon. The Scorpion does lose armor plating from being fired at by the turret, but will only take health damage when fired at from specific angles. Vehicles such as the [[Prowler]] are also seemingly immune to the turret when fired upon from the front, though the hovering nature of the Prowler does mean it will be knocked back intensely by the turret's beam. When firing at vehicles, the turret's beam will fire indefinitely without pause.

*If the player destroys a certain [[Fleet of Retribution]] [[Type-52 Phantom]] during [[The Covenant (level)|The Covenant]], any auto-turrets deployed by the player will fire at [[343 Guilty Spark]].

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