interresting map...
the name of the map, any logical behind it?
the texturing is pretty nice, even tough im not fond of such textures (at least not yet :P).
the lighting, it looks like you wanted to create a "night" theme but failed. the ambient is way to high for it. maybe you should try to create daylight maps first and then go to night themed maps, because night themed lighting is pretty tough to get the perfect atmosphere.
i know a night theme can look very cool if it succeed, but you need a lot of damn luck that you just took accidently the right choices, or you need pretty much lighting experience (and knowledge).
btw, you tried to get the same lighting as injustice. check out the ambient and the lighting of that map (a hint: /entfind light should help in edit mode).
btw, im not saying injustice has a great lighting, but because it looked like you wanted to create a map with such theme...
the geometry is fine to me, because in such abstract map there isnt that much geometry to judge about :P.
the detailing isnt very well. you tried in a corner to add some broken trimming in the map, but in such abstract map, i wouldnt recommend that (especially with a texture thats not detailed at all). of course, its a nice idea to make it look more natural.
the trimming just above each stairs could be a bit more, so it covers the edges in the sides of the stairs to (just only above the stairs, not on the stairs :P).
the mapmodel of the teleport could be removed (just by putting -1 in the 2nd slot of the entinity), because that teleport isnt very fitting the theme.
the flow seems to be good.
the gameplay, isnt that good. you added the pickups twice everywhere, wich isnt needed (especially in a deathmatch map). there are cases that it could be ok to do such thing, but i wouldnt recommend that on this map.
anyways, nice map, but still some things that could be done better.
ill give 7/10 for now...