Enclave Squad Sigma

Enclave Squad Sigma is a special, elite unit of Enclave soldiers stationed at the mobile base crawler in 2277.

Background
Posted to previously unknown and highly secretive locations outside of the Capital Wasteland, only the most veteran of Enclave forces trained in multiple forms of combat earn the right to call themselves Sigma. These six-person squads feature a leader clad in Hellfire armor and carrying an incinerator. Each member has seen their share of combat sorties and lived to tell about it. Sigma Squads are posted around locations deemed by Enclave High Command as “imperative” to the salvation of the cause.

The Sigma Squad is assigned to protect the crawler in case of attack. It consists of 5-6 soldiers with different types of specialties, led by the Enclave Sigma Leader.

Daily schedule
They are initially stationed in their sleeping quarters above the entrance to the Enclave Mobile Platform, but will proceed downstairs once the alarm is triggered to seek and destroy the Lone Wanderer. If the player manages to hide from them, the squad will retire back to their quarters upstairs, sans the leader, who idly wanders around the Mobile Base Crawler area.

Quests
Who Dares Wins: Should the Lone Wanderer be spotted inside the Enclave mobile crawler, Enclave Squad Sigma will show up and attempt to neutralize the Lone Wanderer.

Appearances
Enclave Squad Sigma appears only in the Fallout 3 add-on Broken Steel.