Okay I think this will be the last beta before final.
I took many of the suggestions given by biff, Shambler, Daz, pope, and I think it is much better now.
About the jump pad though...it works fine as long as you don't stand still on it -- in HL2 you need to keep moving in the direction you want to go. So when you're attempting a jump, the best way to go is just to run at it in the direction + launch upward you want to go.
Also, there is a texture misalignment on the inside of the vent fan, I already fixed it my next save, I just didn't noticed it after I did the compile.
http://blitz.circa1984.com/dm_ortho_b3.zip