Angels from Antiquity/Gate Map

Name: Mission Lobby
Depth: 0
Level Link: This mission's lobby is standard.

Name: Restless Railroad
Depth: 1
Level Link: unique.

Name: End of the Line
Depth: 2
Level Link: unique.

Name: The Lab
Depth: 0
Level Link: While not actually listed in the mission's gate map, The Lab is always loaded upon completion and it has a special layout related to this mission.