Scabbard

Scabbard is a member of the Brotherhood of Steel in 2287.

Background
It is unknown who Scabbard is or what he does, however Danse's terminal entries in the Cambridge Police Station mention him as the person to contact through long-range communication should there be unusual activity. Recon Squad Gladius attempted to contact Scabbard after Haylen discovered the Institute's energy readings.

In addition, should the Sole Survivor side with the Railroad and assault the police station, while flying the Claymore during Rockets' Red Glare, Deacon will engage in conversation over the radio with Scabbard, who gives clearance to board the Prydwen. Whether Scabbard is a codename or his real name is unknown.

Appearances
Scabbard is mentioned only in Fallout 4.