A few screenshots might have helped players to know what to expect, though. 

http://www.quaketastic.com/files/SLEEPGATE.jpg

There ya go 

This map requires quoth, as the op didn't mention it. 

Congrats on the first map. So I've created a demo for you:

http://www.quaketastic.com/files/demos/sleepgate_demo.zip

Here are some things I thought were good:
-good use of Quake 2 textures, created a unique feel
-overall layout of map was ok, with some good puzzles
-enemy placement created decent challenge
-great idea with the portal at the end and introduction of base monsters
-creation of vehicles with brushes for detail

So, I read your post on Quaddicted and see that you made this in 7 days. In this case, that is pretty solid, and I find it impossible to really criticize a speed map, made in only a few days. If you spent more time however, months (years...), and had testers play it, some things could have been fixed:

-geometry around start had sky brushes covering some walls
-severe lack of ammo if player didn't find lightning gun, and this was hidden behind crates
-there were many "doors" that do not open and feel very strange, or give no message when they are locked
-some things that I felt must have been secrets, gave no secret trigger.
-the ending fight, while very cool, could have the player camping over the enemy spawn to kill telefrag them all.

Thanks for making the map! 

https://go.twitch.tv/ionous 

Cheers buddy, be good to see how others playthrough

i thought i might have some item issues balance issues as i knew where all the secrets are 

Just watched the playthrough, ahh that damn thunderbolt secret, that's not like me to do things like that lol

Ill add in those suggestions and incorporate some fixes, should that armor be a secret place? i thought it was kind of pain to get to and it was very visible negating the whole secret factor.

So now to move onto my sleepgate dreamworld, whats the chances of getting a coder to add in func that let you walk on walls and ceilings? 

also how you got that plasma gun is beyond me, that computer nearby, you shoot a little red panel on the computer to open the door containing the battery/explodobox, you shoot that and it opens up the plasma gun. 

When loading the map in Quoth, I have a message into the console saying that some textures are missing.

Indeed, a few small parts in the map appear to be missing a texture.

The map is cool, by the way. Feel a bit like in old Doom 2.