To play it you need eDuke32 (official snapshot by Terminx or non-official snatpshot 
by Hunter_Rus), duke3d.grp and, preferably (but not necessarily) High-res pack, 
which may be obtained here:
http://hrpupdate.duke4.net



Installation: 
No need to unzip archive, just place files "A.EZ_episode.zip" and 
"A.EZ_episode.bat" in your Duke3D game folder and run bat file (A.EZ_episode.bat).

If you use eDuke32 mod will run flawlessly.

 

Latest version of the mod always here:

http://members.lycos.co.uk/piterplus/download/A.EZ_episode.zip



Discussion about the mod on the 3DRealms site:

http://forums.3drealms.com/vb/showthread.php?t=29828

