WAD      : Realm of Chaos: 25th Anniversary Edition (The Macintosh Team, Cammy) -- RoC25.wad
Exe      : DSDA-Doom 0.29.4 -complevel 2 xHUD
Map      : 05 "Mission Control" (Slava Pestov)
Skill    : 4
Category : UV-Max
Time     : 5:27

Author   : Alvis
Attempts : 20ish
Video link: https://youtu.be/uRE9tmb4hVY

Comments:

I tried routing this a couple different ways, but it seems like going up and grabbing the rocket launcher before the blue key battle makes a difference. It's not too difficult to get the arachnotrons to kill the spider mastermind while you're out; I just couldn't do that and survive in the same go! 
