Federal Surveillance Center K-21B

The federal surveillance center K-21 B is an unmarked location in the Commonwealth in Fallout 4. It served as an outpost for government surveillance workers who were meant to continue their work well after the bombs fell. Not many workers made it to the bunker and a holotape can be found on an employee's desk detailing the fall of the bunker. Notable loot includes a suit of power armour, a Holotape on the front desk and a US covert operations manual.

Layout
The bunker consists of 3 floors defended by Synth Patrollers, Leaders and Striders. Based on character level a suit of power armour will be at the base level behind the stairs.

Appearances
The federal surveillance center K-21 B only appears in Fallout 4.