This is the mod, thanks and have fun... also happy halloween!
You will need to install Source SDK Base 2013 Single Player.
For more instructions read the readme inside the zip.
Credits:
Wirelex.exe - Creator of this mod, he's now a flying computer
Danielh05 - Beta Tester of this mod.
ControlleronaHanger - Design of the Orange ufo
Gordon Freakman Himself - The Dejavu
Joel Vinesauce - for making the super ghost busters album and
And You - about to play this mod
very funny
Too short