It Came From Below/Gate Map

First Floor:

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

Second Floor:

Name: Haunted Halls
Depth: 24
Level Link: This floor is composed of random Candlestick Keep: Galvanized Gloom segments.

Third Floor:

Name: Into the Maw
Depth: 25
Level Link: This floor is composed of random Cooling Chamber: Infernal Passage segments. Special: It has a swarm fight at the end.

Fourth Floor:

Name: A Descent into Darkness
Depth: 26
Level Link: This floor is an Unknown Passage.