E3M4: Threshold of Hell (The Invasion)

E3M4: Threshold of Hell is the fourth map of The Invasion. It was designed by  and uses the music track " ".

Secrets

 * 1) (sector 206)
 * 2) (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: