Become an initiate

Become an initiate is a quest given by Cabbot of the Brotherhood of Steel to retrieve a holodisk from the Glow.

Walkthrough
Stock up on Rad-X and Rad Away and take 4 Rad-X as soon as you arrive at the Glow. Use a rope to descend into the crater. Move around the first level of the facility until you can search the corpse wearing Power Armor to get the holodisk. Return it to Cabbot and you are now an initiate.

Optional
You have the option of exploring The Glow more thoroughly and it is suggested that you do it now. Guidance: Take the yellow keycard off of the corpse you find the holodisk on. Go down to level 2 and enter a room with several disabled robots. Kill the robots now. You get the same xp and they don't fight back. In the northeast room of level 2 get the red keycard off of the charred corpse. Go on to level 3. Kill the disabled robots, loot what you can, then use the red elevator and go to level 6(red). Kill the disabled robots then repair the generators. Now on to level 4. Kill the disabled bots and then talk to the super computer. Turn the power on then take the blue elevator to level 5. You should have found the blue keycard on the charred corpse in the southwest room on floor 4. The bots on level 5 and 6(blue) are awake. Kill them and loot the lockers for some good stuff.

Reward
Becoming an initiate in the Brotherhood of Steel and having access to their facility.