E3M4: Threshold of Hell (The Invasion)

E3M4: Threshold of Hell is the fourth map in the Planet Hell episode of The Invasion. It was designed by Paul Fleschute (Moe) and uses the music track "".

Secrets

 * 1) Press on the wall behind the red key to get a superhealth. (sector 206)
 * 2) At the exit room, press on the southwest corner to find a berserk pack. (sector 207)

Current records
The records for the map at the Doomed Speed Demos Archive are:

Things
This level contains the following numbers of things per skill level: