This is the Glow Lvl1 section of the map of the wasteland presented by:


Pipboy map:

This is the main level of the destroyed military base that was bombed during the war. The base was researching FEV, and alien technology. The holo disk you have to retrieve is on the power armored body. To go to lower level you need a different pass card for every different elevator. The first one you encounter is yellow, it takes you to Lvl1, Lvl2 and Lvl3. The yellow card is on the same body as the stuff you have to retrieve. There isn't much to do here but look around and salvage some stuff from bodies, ALWAYS CHECK THE BODIES AND LOCKERS! It is a good idea to bring an NPC with you, for packings sake.