E1M5: Weapons Research Center (The Lost Episodes of Doom)

E1M5: Weapons Research Center is the fourth map of Massacre on Callisto, which is the first episode of The Lost Episodes of Doom. It was designed by Christen David Klie and previously released as a map in and later in. According to the designer's notes in the book, it was released as CHRISK15.WAD in the first place.

Walkthrough

 * Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.