How to unlock: Talk to proctor Quinlan on the Prydwen ship (M7,2). You will receive this mission during or after the Tour of Duty quest of the main plot of the Brotherhood of Steel.
Quinlan will ask you to deliver all technical documents that you manage to find to him. You will find them while searching through various buildings, mostly laboratories and military bases. For each delivered piece you will receive 25 bottlecaps.
Quest rewards: 25 bottlecaps for each delivered document.