X4-72 is a synth and a former courser working in the Institute in 2287.
Background[]
After X4-72 complained that their right eye vision was blurry, Justin Ayo sent them to the Robotics division for maintenance. The technicians found that this could not be fixed without permanent damage, so they wiped X4's memory and reassigned them to Facilities.[1]
Appearances[]
X4-72 is mentioned only in Fallout 4.