Sentry Bot (Fallout 76)

Sentry bots are robots found in Appalachia.

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 and flames out of vents on their chest and back while exposing dual fusion cores on their rear until they are back to a stable temperature and reboot to resume attacking. 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.

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.

Whitespring sentry bot
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.

Enclave sentry bot
A black sentry bot serving the Enclave. They guard the MODUS mainframe, as well as the SODUS mainframe (if Over and Out is completed). They sport the 13 stars from the Flag of the United States on their chests below their heads.

Hornwright security robot
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.

Sentry bot strikebreaker
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.

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

Appearances
Sentry bots appear in Fallout 76.

Trivia

 * Unused textures of sentry bots with the Watoga seal and Responders symbol can be found in the game files

Bugs
When a legendary sentry bot is defeated, it will explode twice.