E1M7: CB Reactor INC (Return to Hadron)

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Return to Hadron maps
Episode 1
Episode 2

M1 M2 M3 M4 M5 M6 M7 M8 M9

Episode 3

M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E1M7. For other maps which occupy this slot, see Category:E1M7.

E1M7: CB Reactor INC is the seventh map of the first episode in Return to Hadron. It was designed by Matt Powell (cannonball) and uses the music track "Future Military Conquests" from Duke Nukem 3D.

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Map of CB Reactor INC
Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.


Other points of interest[edit]


  1. In the big water room to the southeast, enter the water and press the green wall on the east side. Take the lift here to the compactors where you can find a computer area map, rockets, armor bonuses, and energy cell pack. (sector 190)
  2. On the brown ledge overlooking the nukage area on the west side of the map, there is a wall with energy cells on it. Use this wall to lower it, and go around the wall to find another wall lowering revealing a shotgun guy and a lift, which takes you to a megaarmor. (sector 308)
  3. Northeast of the exit room, open the wall and use the lift to get a soul sphere and partial invisibility. (sector 312)
  4. Go east from the start and up the green steps. Notice that one part of the gray wall is greener than the rest, use it to reveal a switch which reveals a hallway behind you. Take this hall for a berserk pack and boxes of rockets. (sector 322)
  5. Take the blue door near Secret #6, then grab the stimpack. Quickly enter the teleporter and then flip the switch that is revealed here. Use the teleporter again and a wall will lower revealing a secret room with armor bonuses, medikits, and energy cells. Use the switch on the platform to reveal a BFG9000. (sector 410)
  6. In the room past the red door, when you approach the switch, a closet opens to your right. Press the blue wall at the back of this closet for health bonuses, a megaarmor, two boxes of rockets, and an energy cell pack. (sector 472)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

The records for the map at the Doom Speed Demo Archive are:

Run Time Player Date File Notes
UV speed
NM speed
UV max
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist
NoMo 0:12.63 Maribo 2022-02-06 r1h7o012.zip

The data was last verified in its entirety on April 3, 2022.


Map data[edit]

Things 629
Vertices 3240*
Linedefs 3262
Sidedefs 5020
Sectors 479
* The vertex count without the effect of node building is 2706.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]