Software: Valve Hammer Editor v3.4
Plans: Make new versions mixing it with my other maps.
Bugs: The aliens in the UFO sometimes don't look inside the cage.
If someone wants the .rmf or .map file, just PM me.
Atribution 3.0 Unported (CC BY 3.0).
I'm not sure if I generate the license ok. I just want to say that you can feel free to modify, copy, make versions... of this map as long as you keep my name in your credits.