How to unlock: Talk to captain Kells on the Prydwen ship (M7,2). You will be able to take this quest only after you complete A Loose End quest. It is one of the Brotherhood's random quests.
- Talk to captain Kells
- Go to the squire
- Go to the destination and clear it
- Go back to Captain Kells
You will receive this quest from captain Kells who can be found on the Prydwen ship. However, it will be possible only after you will complete A Loose End quest. It is one of the brotherhood's random quests and during it you must show one of the brotherhood's squires what his duties will be looking like.
Once the conversation with Kells is over, go to Boston airport and pick the squire from there. He will tell you where you must go. Once you reach the destination, clear the area of enemies. Now you must return to Prydwen and go to Kells. He will give you some bottlecaps and you will be able to take another similar quest.
Quest rewards: experience points, bottlecaps, new side quest.