I rather agree with Merlijn that the map has to be somewhat decent, i dont think alot of people would play a barren map or a really ugly one, but everyone has their own preference.
And the idea for the asylum map was rather small, if you ask me too small to make it into a coop map, but if you ever do wish to use it for anything, or the likes, the txt file states you may use/modify parts or the map.

The idea of the cyber map was for players to show their skill at aiming and dodging, while there are some obstacles, there are not too many. Health and atomic health is scattered around the map, so any good dodger is not going to drop like a fly just yet, i hope. Even a sniping spot is there as well, and i kind of like the idea to jump trough the roof of a block, and land on its top side, to simply go up. Any hiders could be obliterated with an RPG.
Oh, have you tried using the button at the control panel rapidly as well?

Its an amusing bug i found and left in, hehe. Im sure the chaingun works on it well, or whatever it was called, i played Doom a little too much lately.
Oh, and all respawn spots in the cyber map have a shotgun and ammo spawn on them, so it'll be reasonable to respawn and keep going, hehe.