you can see very well in this map, that you like to edit in sauerbraten more then you like to play it.
you can make nice geometry, but you seems to never heard of using more then 4 textures, creating first the gameplay, then the geometry, then the lighting, then the details and then texturing (some stages can be switched in here, but always put gameplay on first place when you want to make a gameplay map!).
ill still comment this map, so here we go...
the lighting is boring, no contrast at all, just a yellow light on a primairy yellow texture.
the texturing sucks, just not more then 4 or 5 textures has been used.
the geometry isnt that great actually either. just a matter of copy paste and mirror...
the detailing isnt that good either, just because of the copy past and mirror issue...
the flow is bad too, there hasnt been proper noclipped and clipped. at some doorways you get stuck by a trim, and some just by the doorway itself.
the gameplay is very boring. at the upper floor of the map, its just 1 straight end to your enemy when your facing him, its like if you play a 2.5D game like doom1 or 2 or quake1.
the gameplay isnt telling any story too, its just some long straight ways with sometimes a way to turn left or right, but thats only at the lower floor. its not giving any feeling like there has been thinked about a proper gameplay.
i suggest you look at official maps and maps that are in the svn version (and dont take maps that look the best, take maps that play the best, so as example take a look at maps like orion too. it has a very unique gameplay and keeps te player unbored).
its definetly not a small insta map. and even if it is pretented to be an insta map, then still add pickups, just to create the option for other modes too (this gives you a higher chance of getting included into any release, because it would be multi-compatible).
because there are can be done more improvements then there are good points on this map, i would say, drop it and just go on, its not worth it to improve just because are actually just some small parts that are copied, pasted and mirrored several times...
the map doesnt even has a theme, there are already plenty of such maps that went out much better than this...
even if this map would be an artistic map it would fail, just because everyone can copy past and mirror a map full with the same structures...
btw, about the license, wheres your copyright license then?
ill give 3/10 for it...
p.s. dont take this comment too personal, its just that the map is finished for a very tiny 1%.