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For a cross-game overview, see sentry bot.

 
Gametitle-FO76.png
Gametitle-FO76.png
The Whitespring remains secure.— Whitespring sentry bot

Sentry bots are robots found in Appalachia.

Background

The heaviest class of combat robot in the United States Armed Forces, the sentry bot's singular purpose is to provide security through overwhelming firepower.[1] The sentry bot had become a standard piece of military equipment by at least 2063, with prototypes existing further back.[2] The assaultron is designed for melee combat, and the Mister Gutsy is a jack-of-all-trades. The sentry bot's purpose is to engage the enemy at range with a variety of weapons, including miniguns, Gatling lasers, rocket launchers, and even back-mounted cluster grenade launchers. At the same time, its thick armor and multiple redundant systems allow it to survive extended engagements. It's commonly considered to be one of the most dangerous robots ever created and RobCo Industries' finest fighting robot. Late models are also provided with the ability to self-destruct to prevent the enemy from recovering the robot.[3] Early sentry bot models were issued serial numbers in the SB-#### format (model, then serial), with later models transitioning to the standardized alphanumeric registration in the ABC-###### format.[4]

Characteristics

The sentry bot is typically equipped with a missile launcher and minigun. However, it may use alternate weaponry configurations such as dual miniguns or gatling lasers.

On top of their formidable ranged weaponry, sentry bots have powerful melee attacks and a self-destruct function. Despite their bulky armor and appearance, they are capable of fast movement and traversing rough terrain. In addition, a sentry bot's entire torso is capable of rotating independently of its legs, functioning akin to a turret, and allowing it to move in one direction while shooting in a different direction, against targets in any direction. Sentry bots also use Mecanum wheels that allow it to strafe right and left without having to turn.

Gameplay attributes

Sentry bots are some of the most difficult robots encounters - agile, heavily armed and equipped with tremendous firepower. Despite their intimidating strengths, they possess a glaring weakness - overheating. If engaged in combat for too long, they will eventually enter a cooldown period, blasting steam out of their back while exposing dual fusion cores on their rear. Attacks which strike the fusion cores will always deal ×20 damage (alternatively, the fusion cores can always be targeted with V.A.T.S. while having the Concentrated Fire perk equipped).

Upon taking terminal damage, the sentry bot will initiate a self-destruct sequence. After a few seconds, they will explode with the force of a mini nuke, which can cause significant damage to surrounding opponents, and are left charred and blackened. Additionally, the loss of both main weapons will prompt the sentry bot to initialize their self-destruct sequence and charge at their target. Even with their ranged weaponry intact, sentry bots often charge into close combat to deliver powerful blows with their arms.

Variants

Name (Form ID)AbilitiesItems
Sentry bot
00217D66
Annihilator sentry bot
0018152B
Sentry bot siegebreaker
00217D66
Attack
Minigun (Attack damage Damage)
Attack
Gatling Laser (Attack damage Damage)

Annihilator sentry bot Mk.II

A black sentry bot armed with both the arm-mounted machine guns and a pair of mortar launchers on its back.

Name (Form ID)AbilitiesItems
Annihilator sentry bot Mk.II
????????

Whitespring sentry bot

FO76 Whitespring sentry bot.png

A generally non-hostile sentry bot. It is white in color and only encountered within the Whitespring Resort. It will attack other hostile creatures which come into its range, but will only attack the player if provoked. The wheels that it rolls on are also different from those on other sentry bots, sporting a more studded ball appearance.

Name (Form ID)AbilitiesItems
Whitespring sentry bot
0018152B

Enclave sentry bot

FO76 Enclave Sentry Bot.png

A black sentry bot serving the Enclave. They guard the MODUS mainframe, as well as the SODUS mainframe (if Over and Out is completed).

Name (Form ID)AbilitiesItems
Enclave sentry bot
00217D66

Hornwright security robot

Hornwright security robot.jpg

An aggressive Hornwright sentry bot armed with flamethrowers and painted red. It may be found by the Mount Blair trainyard during the Battle Bot event, and holds security protocols.

Name (Form ID)AbilitiesItems
Hornwright security robot
0033D909

Sentry bot strikebreaker

Sentry Bot Strikebreaker.png

Typically a hostile sentry bot, it is red in color and is most commonly found in the Ash Heap region. Can sometimes appear in Sentry Bot Patrol random encounters.

Name (Form ID)AbilitiesItems
Sentry bot strikebreaker
00217D66

Arktos Pharma sentry bot

Arktos Pharma Sentry Bot.png

A sentry bot belonging to Arktos Pharma, located in the Arktos Pharma biome lab.

Name (Form ID)AbilitiesItems
Arktos Pharma sentry bot
Public Event Project Paradise

0033D909

Locations

Locations
Guaranteed
Dyer Chemical The Whitespring bunker (interior) The Whitespring Resort
Site Alpha Site Bravo Site Charlie
Possible
98 NAR Regional Garrahan Mining Headquarters's parking lot NAR repair yard
East of Watoga Station Mount Blair trainyard Random chance Can appear in a random encounter Random chance

Named sentry bots

Unique sentry bots
Bessie XB-55 Valentine Cut content

Bugs

Icon pc.png Icon xboxone.png Icon ps4.png When a legendary sentry bot is defeated, it will explode twice.[verification needed]

Appearances

Sentry bots appear in Fallout 76.

References

  1. Fallout 76 loading screens: "The Sentry Bot was designed for one purpose: security through overwhelming firepower. Its only real weakness is the short "cool down" phase after attacking, when its fusion core is most vulnerable."
  2. The Wastelad video game was first published in 2063 and features Military Sentry Bots as enemies.
  3. Fallout 4 loading screens: "The Sentry Bot is one of the most dangerous combat drones ever created, and utilizes a variety of heavy weapons systems to destroy its enemies. Upon death, it erupts in a devastating explosion."
  4. Serial numbers in Fallout 3 and Fallout: New Vegas.
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