Cobra seems very enthusiastic..... i on the other hand have more of an opinion to share with you....
things i didnt like:
1)its a block
2)its too open - put some more buildings in
3)you have too many weapons of the same kind in one place....... spread out the weapons..... make the players do some work
4)your textures choices r boring....... need some variety
5)also...... where is the lighting coming from? the sky?
6)all your buildins are the same with different colours (some of them ne way) make some nice shapes in 2d shape editor or just with the regular brushes
7)skybox need work....... add some moons or osmehting, not just moving stars like that....... Cobras right when he says you need to align it better or something...... im not sure what to do myself
8) the trees are crap..... dont have them....... they look crap......
9)same with the millions of barrels on those weapons
10)add some warpzones or movers........... make it a bit different in the respet of levels in buildings
things i liked:
1)the spiral stairs are nice
2)the underground water tunnels are cool
3)the redeemer and damage amplifier are in nice places.....
4)I like the red eploding barrels..... dont have so many in front of the teleporter..... dont just have 40 in one spot...... put others elsewhere but dont put over 6 in one place please!
http://www.birrabrothers.com/drac/dmain.asp?dbp=18
check out that site it has the best tutorials on the net...... good luck.........is this one of your first attempts? if so..... keep trying........ we werent all born able to use ued.....
take care
- Silva
p.s. plz dont be offended by what i say i only say it to encourage you.......