Sentinel power armor

The Sentinel Control System, also known as sentinel power armor or sentinels, is a type of robot encountered in the Commonwealth in 2287. It is available in the Creation Club content "Sentinel Control System Companion", during the quest Malevolent Malfunction.
==Background==
The Sentinel Control System was developed in cooperation by West Tek and General Atomics International prior to the Great War. It was meant to provide support to military support to United States Armed Forces units by using pre-existing power armor pieces. After the Great War, a number of units were recovered by the Brotherhood of Steel. Some of these units were used by the Brotherhood Outcasts but were inherited by the East Coast chapter when the Outcasts merged back with them after the Brotherhood Civil War.
In 2287, the Brotherhood brought at least four units with them to the Commonwealth, still bearing the paint of the Outcasts. One of these units was used in testing to see if sentinels could be used for unmanned missions, being given more advanced friend/foe identification software. However, the unit was extremely hostile to others and went rogue on its first test patrol. Three other units were sent to escort Knight Maria Harper and Scribes Dawson Wakefield and Gael Vasquez. However, Dawson hacked into Maria and Vasquez's units and had all three ambush the two soldiers.
==Characteristics==
Sentinels appear as ordinary power armor frames and are able to equip any pieces of power armor. The majority of sentinel power armors are hostile and will attack on sight. The sole exception is Dawson's suit, which the Sole Survivor can hack into with the Pip-Boy 3000 Mark IV, after killing him and acquiring his passcode. While plugged into the sentinel, it is possible to modify its loadout, switch between standby and escort mode, or change its personality matrix between that of a sentry bot, Mister Gutsy, Assaultron, or "memory free" mode. One is also able to get a Liberty Prime personality matrix in a miscellaneous objective triggered by reading the entirety of Dawson's holotape. The sentinel does not take up a companion slot while following the player character.
==Locations==
* Two hostile sentinels are standing at an intersection, guarding the bodies of Maria and Vasquez, west of Lexington.
* An inactive unit is at the Schoelt propane station. It can be hacked into and made a companion following the death of Dawson.
* After the completion of Malevolent Malfunction, a hostile, rogue unit can be found and killed. It can reliably be found at Relay tower 0BB-915.
==Notes==
* The sentinel companion will turn on its helmet's headlamp at night, no matter whether it is in escort or standby mode. It will turn off the headlamp while sneaking.
* Unlike other companions, the sentinel companion can accidentally deal damage to the player character even if they have the Inspirational perk. It is therefore advised that one avoids shootouts in close quarters with the sentinel, and even perhaps avoids arming the sentinel with high-damaging weapons.
* Power armor equipped on the sentinel companion will never break for as long as the sentinel is wearing it (although the sentinel companion itself can still be temporarily downed like a true companion). Builds that utilize low-durability power armor such as Tessa's Fist or the Overboss power armor are thus much more viable on the sentinel.
* This Creation Club content seems particularly prone to mod conflicts, and works up to the very end, but at that point the game fails to apply the hidden perk needed to actually hack the armor. This can be resolved on PC by opening the console and running help "power armor hack" 4 to obtain the object ID of the perk, and then manually adding it via the console command player.addperk x where x is the object ID of the perk.
* If one happens to get the personality matrix for Liberty Prime before getting the optional quest, the game will forever show an objective marker over the player marker in the map. To force the quest to complete, one can use console commands. The quest id can be found by using help OptionalVoiceQuest. Then the quest can be forced to complete by using completeallobjectives x where x is the quest ID. 
* In order for the sentinel's equipped power armor's weight to be changed to zero and for additional effects such as extra carry weight from calibrated shocks to take effect, the sentinel's inventory must be exited for said effects to activate. Depending on the power armor being equipped, it may be necessary for the player to enter its inventory menu multiple times to fully equip it. 
==Bugs==
 When equipped with a Stealth Boy mod, the effect will activate inconsistently. This appears to be similar to the Chinese stealth armor bug, where if the armor is left in a container for too long the stealth effect won't activate.
 Sometimes Dawson Wakefield doesn't spawn at all at the propane station.
==Appearances==
The sentinel power armor appears only in the Fallout 4 Creation Club content "Sentinel Control System Companion."
Category:Creation Club robots and computers
Category:Fallout 4 Brotherhood of Steel characters
Category:General Atomics International technology
zh:Sentinel power armor