Spoils of War

Spoils of War is a quest in Fallout 4.

Quick walkthrough

 * 1) Speak to Proctor Ingram
 * 2) Fly to Mass Fusion OR
 * 3) Inform the Institute
 * 4) Jump to Mass Fusion’s roof
 * 5) Locate the Beryllium Agitator
 * 6) Retrieve the executive key card
 * 7) Proceed to the Reactor Level
 * 8) (Optional) Restore power to the elevator
 * 9) Enter the reactor chamber
 * 10) Unlock the reactor
 * 11) Take the Beryllium Agitator
 * 12) Eliminate Reactor Level security
 * 13) Exit Mass Fusion
 * 14) (Optional) Assist Brotherhood forces in the lobby
 * 15) Return to Boston Airport
 * 16) Speak to Proctor Ingram

Bugs
It's possible that when you are getting in the vertibird you stop at the Airport not at the Mass fusion OR, and when you go back to the Prydwen you can't enter at the vertibird anymore, reload at a save before leaving the inside of the Prydwen may fix the problem.