Y9-15

Y9-15 is an escaped Institute synth hiding at Bunker Hill in 2287.

Background
An escaped synth, hiding below Bunker Hill as the battle rages above. Y9-15's recall code is "Beta 7 7 Tempest".

Quests

 * The Battle of Bunker Hill: The player confronts the synths below Bunker Hill and depending on their affiliation can either kill them (Brotherhood), let them escape (Railroad), or reset and recall them to the Institute (self-explanatory).

Appearances
Y9-15 appears only in Fallout 4.