Reilly's Rangers (quest)

 is a Fallout 3 quest. It is also an Xbox 360 and PC achievement.

Objectives and walkthrough
Reilly's Rangers is a map service group in the wastelands of Fallout 3. There are five members of Reilly's Rangers.

Reilly herself also gives out quests involving mapping the wastes and helping other rangers in need. Among the quest rewards are a suit of Ranger Body Armor and a Minigun.

The Fission Battery required to repair the elevator can be found on the floor just bellow the roof. Follow the quest map indicator.