Sentry bot (Fallout 3)

	This page is about sentry bots as they appear in Fallout 3. For other sentry bots that appear throughout the Fallout series, see sentry bot.

	Fallout 3 robot Sentry bot
	Gatling laser sentry bot
	Location Capital Wasteland Anchorage Reclamation simulation Affiliation United States Armed Forces Private Security Variants Sentry bot Enclave sentry bot (Broken Steel) Strike team sentry bot Operation: Anchorage U.S. Army sentry bot Presidential metro sentinal unit

 

Sentry bots are a model of robot found in the Capital Wasteland after 2277.

Background

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The heaviest class of combat robot in the United States military, the sentry bot sacrifices speed and maneuverability for sheer resilience and overwhelming firepower. While 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, while 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 enemy from recovering the robot. 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.

An early sentry bot model developed by RobCo Industries, designed specifically for heavy combat. The bot is divided into two halves, with the upper body containing the central processing unit, power core, and mounting the primary optical receptor. They are protected by a cast armored shell, consisting of just three pieces: The torso and upper assembly, a separate rear plate giving access to internal mechanics, and the head assembly protecting the main optical receptor. Its arms act as hardpoints, accepting a variety of weapons including miniguns, Gatling lasers, and rocket launchers. The lower body, connected by four shock absorbers and a centrally-mounted duct, contains fans venting accumulated hot air outside the chassis, preventing overheating. For movement, the lower body is fitted with three independent legs that provide it with a stable firing platform in any environment, much like a machine gun mount. The legs terminate in semi-spherical wheels (rubberized on the front, solid steel scoops on the back), giving it excellent mobility as well. Unlike the Gutsy or Assaultron, all sentry bots come with a simple synthetic personality.

Characteristics

All sentry bots encountered in the game have either a minigun or Gatling laser on the right pylon and a missile launcher on the left one. As expected, they are the most resilient robot in the game, with as many hit points as a deathclaw and far greater damage resistance to boot. Furthermore, they cannot be crippled with a dart gun nor do they have any critical weak spots: Their head and legs take -50% and -25% damage respectively from all normal attacks. Its one flaw is the combat inhibitor mounted on the back and its slow turn rate, allowing the player to circle-strafe and destroy the inhibitor, causing it to frenzy (though it's pointless in areas without additional enemies). pulse grenades are very effective weapons against the bot. Using the Robotic Expert is also a good way to permanently shut it down (the talk option is useless).

Sentry bots sit at the top of the game's robotic food chain and are routinely found roaming the Capital Wasteland, either alone or in groups of two to three. The Outcasts and the Enclave use them on a regular basis, with a pair of unique sentry bots found at Raven Rock, guarding the entrance to the President's chambers. They will kill the Enclave soldiers standing at their post, allowing the player to reach Eden.

One sentry bot is posted alongside Paladin Bael at the entrance to the Citadel. It respawns, providing an endless supply of loot, but will be removed from the game after completing Take It Back!. A quest-related sentry bot is found in Big Town and can be repaired to aid the town in defending against super mutants following Big Trouble in Big Town. Another two can spawn alongside the Mechanist at Canterbury Commons.

Variants

Sentry bot

Sentry bots come in many different guises, distinguishable by their paint, which shows their affiliation (Enclave, Brotherhood Outcasts, United States Armed Forces, etc.).

Name (Base ID)	Statistics	Behavior	Abilities	Items
Sentry bot 0001cf8a	Level 12 Experience points 120 Detection 7 Health points 500 Damage resistance 0%	Fist Very aggressive: Will attack enemies and neutrals on sight. Confidence Foolhardy: Will never flee or avoid anyone. Group Helps friends: Will help friends and allies.	Attack Melee (22 Damage) Attack Missile launcher (20 Damage) Attack Gatling laser (6 Damage) Ability Radiation Radiation resist. 100% Ability Poison Poison resist. 100%	Dead Missiles Dead Electron charge pack Dead Fission battery Dead Scrap metal

Enclave sentry bot

Slightly darker in appearance when compared to the normal variant, the Enclave model boasts improved systems.

Name (Base ID)	Statistics	Behavior	Abilities	Items
Enclave sentry bot 0001cf75 0005f9d1 000aec21 000aec22 000af5e4 000af5e5	Level 12 Experience points 120 Detection 7 Health points 500 Damage resistance 0%	Fist Very aggressive: Will attack enemies and neutrals on sight. Confidence Foolhardy: Will never flee or avoid anyone. Group Helps friends: Will help friends and allies.	Attack Melee (20 Damage) Attack Missile launcher (20 Damage) Attack Minigun (9 Damage) Ability Radiation Radiation resist. 100% Ability Poison Poison resist. 100%	Dead Missiles Dead 5mm rounds Dead Fission battery Dead Scrap metal
Enclave sentry bot Broken Steel xx007ff0 xx007ff1	Level 12 Experience points 120 Detection 7 Health points 500 Damage resistance 0%	Fist Very aggressive: Will attack enemies and neutrals on sight. Confidence Foolhardy: Will never flee or avoid anyone. Group Helps friends: Will help friends and allies.	Attack Melee (20 Damage) Attack Missile launcher (20 Damage) Attack Gatling laser (6 Damage) Ability Radiation Radiation resist. 100% Ability Poison Poison resist. 100%	Dead Missiles Dead 5mm rounds Dead Fission battery Dead Scrap metal

Strike Team sentry bot

The most expensive option for recruitment in Operation Anchorage is a winterized sentry bot, with a built-in minigun and missile launcher, costing 4 recruitment markers.

Name (Base ID)	Statistics	Behavior	Abilities	Items
Strike Team sentry bot xx005013 Operation: Anchorage	Level 3 Experience points 30 Detection 7 Health points 300 Damage resistance 0%	Fist Aggressive: Will attack enemies on sight. Confidence Foolhardy: Will never flee or avoid anyone. Group Helps friends: Will help friends and allies.	Attack Melee (20 Damage) Attack Missile launcher (20 Damage) Attack Minigun (9 Damage) Ability Radiation Radiation resist. 100% Ability Poison Poison resist. 100%	Dead Missiles Dead Electron charge pack Dead Fission battery Dead Scrap metal

U.S. Army sentry bot

U.S. Army sentry bots can be found wandering about the wastes in seemingly random locations, even miles away from the nearest military installation. They can easily be recognized by their green paint job and U.S. Army insignia painted on their chassis and arms.

Name (Base ID)	Statistics	Behavior	Abilities	Items
Sentry bot xx005c6e	Level 12 Experience points 120 Detection 7 Health points 500 Damage resistance 0%	Fist Very aggressive: Will attack enemies and neutrals on sight. Confidence Foolhardy: Will never flee or avoid anyone. Group Helps friends: Will help friends and allies.	Attack Melee (22 Damage) Attack Missile launcher (20 Damage) Attack Gatling laser (6 Damage) Ability Radiation Radiation resist. 100% Ability Poison Poison resist. 100%	Dead Missiles Dead Electron charge pack Dead Fission battery Dead Scrap metal
Sentry bot xx005c6f	Level 12 Experience points 120 Detection 7 Health points 500 Damage resistance 0%	Fist Very aggressive: Will attack enemies and neutrals on sight. Confidence Foolhardy: Will never flee or avoid anyone. Group Helps friends: Will help friends and allies.	Attack Melee (22 Damage) Attack Missile launcher (20 Damage) Attack Minigun (9 Damage) Ability Radiation Radiation resist. 100% Ability Poison Poison resist. 100%	Dead Missiles Dead 5mm rounds Dead Fission battery Dead Scrap metal

Presidential metro sentinal unit

This unique sentry bot is encountered in Broken Steel, at the end of the Presidential metro, near the metro to Adams Air Force Base. It holds the main fuse, which needs to be used to repair the nearby powerbox for the metro.

Name (Base ID)	Statistics	Behavior	Abilities	Items
Presidential metro sentinal unit xx0064d6 Broken Steel	Level 12 Experience points 120 Detection 7 Health points 500 Damage resistance 0%	Fist Very aggressive: Will attack enemies and neutrals on sight. Confidence Foolhardy: Will never flee or avoid anyone. Group Helps friends: Will help friends and allies.	Attack Melee (22 Damage) Attack Missile launcher (20 Damage) Attack Gatling laser (6 Damage) Ability Radiation Radiation resist. 100% Ability Poison Poison resist. 100%	Dead Missiles Dead Electron charge pack Dead Fission battery Dead Scrap metal

Notable quotes

Sentry bots possess an authoritative array of speech programming, mainly expressing its current programming out loud, much like the protectron. However, sentry bots have a "deeper" voice, instilling fear in all.

• "Alert. Non-combatants are advised to leave the area. Security sweep in progress. Lethal force may be used without warning."
• "No hostiles detected. Continuing perimeter sweep."
• "Threat level: red."
• "Do not interfere with security operations."
• "Security lockdown in effect. Hostile target acquired!"
• "Adding target to threat matrix!"
• "Hostile detected. Commencing neutralisation."
• "Warning: use of lethal force is authorized!"
• "Alert! Non combattants are advised to leave the area. Security sweep in progress. Lethal force may be used without warning."
• "Alert. Hostile detected. Lethal force authorized for all units."
• "Do not interfere with security protocols."
• "Have a nice day."

Behind the scenes

• Both the Enclave and Lyons' Brotherhood of Steel were supposed to have bots with unique textures. They are not used in the game, with both using the base steel sentry bot.

Bugs

• PlayStation 3 Xbox 360 PC Outcast sentry bots will always spawn with the Gatling laser arm, despite resources for the minigun variants being present.
• Xbox 360 PlayStation 3 A disabled sentry bot may be stuck in an animation loop if the animation did not finish when it was disabled.

Gallery

• 

  Gatling laser sentry bot.

• 

  Minigun sentry bot.

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  Enclave Gatling laser sentry bot.

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  Enclave minigun sentry bot.

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  Outcast sentry bot.

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  Gatling laser military sentry bot.

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  Minigun military sentry bot.

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  Winterized sentry bot.

• 

  Minigun Outcast sentry bot. Cut content

• 

References

Robots and computers Military and security Turrets Automated turret · Auto-cannon · Gun turret  · Laser turret · Turret robot Floating robots Eyebot (Duraframe Eyebot · Prototype Eyebot · Sparks) · Floating eye · Hover robot · Mister Gutsy (Hardened Mister Gutsy, Ironbelly, Cerberus Sawbones, Sergeant RL-3, Hoover) · Security robot Walkers Argos · Behemoth · CRB-S · Gasbot · Gun robot · Humanoid brain bot · Humanoid robot (Gloating robot, HR 1200, HR 1205, HR 2999) · Kamikaze robot · Laser robot · Liberty Prime · Pacification robot · Protectron (Deputy Weld, Fisto, Primm Slim) · Robo-scorpion (X-42 giant robo-scorpion) · Scurry robot · Sentinel ·Type II sentry bot · Tesla robot Tracked and wheeled robots Gatling laser security robot · Protect-O-Bot · Robobrain (Masterbrain, Skynet) · Securitron (Jane, Marilyn, Victor, Yes Man, 010011110110111001100101, Muggy) · Type I sentry bot (Hardened Sentry Bot, Prototype Sentry bot, RY-589 Ultimo bot, Sparky) Miscellanous Hologram Utility General Assistant robot ·Maintenance robot · Mister Handy (Andy, Crazed Mister Handy, Godfrey, Job, Mobile facial recognition scanner, Mister Buckingham, Mr. Janitor, Prototype Mister Handy, Rhonda, Tour guide, Unit 462, Sparks, Wadsworth) · Service robot · Think tank · Walking eye Medical Medical Eyebot · Mr. Orderly (Doctor Orderly MD PHD DDS) · Ms. Nanny (Curie, Miss Edna, Molly) · Sawbones Industrial Agricola robot · Construction drone (Construction drone foreman, The Custodian) Loadlifter robot · Maintenance robot ·Mr Steel  · Python ·Repair Eyebot · Tank track robot Commercial N.I.R.A. · Nukatron · Sunset Sarsaparilla eyebot · Vendortron Artificial intelligence Artificial Conscious Entity · Diana Stone · ZAX (John Henry Eden) Alien Alien turret · Experimental weapons drone · Guardian drone · Support drone