So on a regular basis I try to start building something in Darkradiant but very quickly I loose interest and give up.
I tend to
create a room, position an ai in it (or first ai, then room, probably better) put a light in it Put some stuff in it test the room in tdm Now I had this new idea:
Start of with a gigantic room. To skip the importance of sealing for the time being and to think broader than one room. Then just use ground without wall, just to visualise the structure of the level.  Then just use prefab walls and other elements (arches, etc.). Just building area's that aren't enclosed. I can always close them at a later point. Maybe this is all very logical from a mappers perspective, but tdm is the first game where I have done any kind of real mapping and I always stop at the start. It just takes too long to make something exciting.
I want to build something at some point, because over time I accumulated lots of ideas.

It would be nice to have a link to the forum thread of a mission in download section, rather than having to search for it manually, like on Thief Guild.

Anaglypta , floral and damask wallpaper look great in older homes 
It’s rare to see anyone using “shader not found” wallpaper in their house

 

Terribly difficult juggling map designing with work, but I'm still alive and chipping away at something very special. I'm actually making a collaboration of sorts with a friend, I make the map itself and he acts as my "Chief Scope Creep Consultant" that checks in every so often to make sure this project isn't getting out of hand. It's a good system!

We don't need artificial intelligence; we need artistic intelligence. 
Ralf Hütter, Kraftwerk