Hi, some maps have unexpected buildable places that can be used for cheating.
Spacetracks
On Spacetracks it is possible to build a telenode behind the door in the "Big dark room":
So it's possible to respawn behind the door:
And to build a base:
It's also possible to build an usable armoury behind the door:
Chasm
A day while playing on my server I see someone building a drill behind the door in the "Cargo Handling" room:
So I've tested to build a telenode, it works:
Then I was able to build a complete base outside:
Fear my big balls: