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Intruder identified. This is a restricted area. Your arrival wasn't in the mission briefing.— X9-27

X9-27 is an Institute courser in the Commonwealth in 2287.


X9-27 is a courser, and as most coursers encountered above ground, he is in the process of completing orders given by the Institute. Encountered during the Operation Ticonderoga quest, he will not attack the Sole Survivor immediately, due to this quest occurring after the player character has been to the Institute. Because of this, all synths remain non-hostile until attacked. This gives the player character a chance to talk to him if they want.

Unlike the encounter with Z2-47, X9-27 is accompanied by a group of synths and another courser, who is referred to as the "second unit" by X9-27.

Interactions with the player character

Interactions overview

FO76 ui icon quest.png
This character is involved in quests.

Operation Ticonderoga


Apparel Weapon Other items On death
Courser uniform


X9-27 appears only in Fallout 4.