Ask Scribe Rothchild what you can do to help the Brotherhood, and he’ll request that you search for Sensor Modules and Camera’s (Yeah, I know.. WTF?) to help fixing Liberty Prime. You’ll get the following rewards for each:
                      .-------------.-----------------.
                      |Item Name:  |Reward:         |
                      |=============|=================|
                      |Sensor Module| 75 Caps 10 EXP|
                      |Camera      |100 Caps 25 EXP|
                      '-------------'-----------------'
This quest is given by Paladin Tristan, and he requires Super Mutant Blood Samples. For every one you retrieve you’ll get 50 Caps and 10 EXP.
You’ll find a holotape with this name at the end of the presidential tubes. Take a listen to it and make your way La Maison Beauregard, a building located in Georgetown East. You’ll encounter Lag-Bolt, who comes equipped with Lag-Bolt’s Combat Armor, Lag-Bolt’s Shades, and the key to a nearby suitcase in which you can find All-Nighter Nightwear.
