John Romero's E1M4b file

Copy from the read me file:

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Advanced engine needed : Limit-removing source ports
Primary purpose : Single Player, Co-op, Deathmatch
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Title : Phobos Mission Control
Filename : e1m4b.wad
Release date : April 26, 2016
Authors : John Romero
Email Address : john@romero.com
Others Files By Author : doom1.wad, doom.wad, doom2.wad
Misc. Author Info : This is a warm-up for my new classic FPS.

Additional Credits to : John C., Adrian C., Tom H., Kevin C., Sandy P., Dave T.
Pascal "CodeImp" vd Heiden for Doom Builder
The Doomworld Community
Linguica, Matthias Worch and Ian Dunbar for Testing expertise

General Description : Tom Hall originally created the framework for E1M4.
It makes sense that if I was creating an entire E1 of
just my work, this would be the level I would remake.

To Run This WAD : The easiest way is to download ZDOOM from ZDOOM.ORG. You can
drag the WAD file onto the EXE (or APP), then warp to the
level by typing IDCLEV14 when you're in the game.

With the Toxin Refinery in the rear-view, you make your way to Phobos Mission Control
where the computers crunching the data from the Phobos Anomaly are located. You need
to use them to gain access to the Phobos Lab, but remember hearing that the computers
were tied into all areas of the installation and that you never knew when the environment
around you would change. You need to keep your eyes alert to all movement - this
place is not what it seems...

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* What is included *

New levels : 1
Sounds : No
Music : No
Graphics : No
Dehacked/BEX Patch : No
Demos : No
Other : No
Other files required : Doom1.wad or Doom.wad

* Play Information *

Game : Doom 1
Map # : E1M4
Single Player : Designed for
Cooperative 2-4 Player : Designed for
Deathmatch 2-4 Player : Designed for
Other game styles : No
Difficulty Settings : Yes

* Construction *

Base : New from scratch
Build Time : 2 weeks in my spare time
Editor(s) used : DooM Builder 2, GZDoom Builder
May Not Run With : Doom2.exe
Tested With : ZDoom 2.7.1, PrBoom, Doomsday, Crispy Doom
Known bugs : No

* Copyright / Permissions *

Authors may NOT use the contents of this file as a base for
modification or reuse. Permissions have been obtained from original
authors for any of their resources modified or included in this file.

You MAY distribute this file, provided you include this text file, with
no modifications. You may distribute this file in any electronic
format (BBS, Diskette, CD, etc) as long as you include this file
intact.