READ THIS PLEASE!
CREDIT WHERE IT'S DUE.
I found out that I'm not the only one who likes doing this. There was this user, Airdecade, who did what I did, before I did, without the ExFu glitch. PLEASE PLEASE PLEASE check his videos out, he deserves more views than this video.
http://www.youtube.com/watch?v=8Pb4u3...
First off, I want to say that yes, yes I did use noclip. It was ONLY used to get through the doors, as, who would've thought, the doors don't open with one person. So DON'T comment saying WTF NOCLIP NOOB!@#.
The part where I am supposedly using noclip, but instead just flying around (8:16) is the Excursion Tunnel Glitch, found by romscout. Link to his video:
http://www.youtube.com/watch?v=KSoOje...
Also, the part at 1:05 uses the Reportal Glitch, found by logitechSDAZ and explained here:
http://www.youtube.com/watch?v=AWS34S...
This video is not only to show that most coop tests are do-able with one person, but act as a guide/route video for people looking to speedrun.