Sentry Bot (Fallout 76)

Sentry Bots are robots found in Appalachia.

Gameplay
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. 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. Additionally, the loss of both main weapons will prompt the Sentry Bot to initialize their self-destruct sequence and charge at their target.

Annihilator Sentry Bot Mk.II
A black Sentry Bott armed with both the arm-mounted machine guns and a pair of mortar launchers on its back. Sometimes, the right arm machine guns are replaced with a different weapon, such as a missile launcher or grenade launcher.

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.

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. A circle of stars decal appears on the front.

Hornwright Sentry Bot
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
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.

Named

 * Bessie
 * XB-55
 * Valentine

Appearances
Sentry Bot appear in Fallout 76.

Behind the scenes
Unused textures of a Sentry Bot with the Watoga seal and Responders symbol can be found in the game files.