Ok, finally i managed to take some time to test and comment your map, hehe.
First of all, i must say i like your layout and style, your maps are looking better from time to time, i especially like the textures you used this time.
Some of these curves are really nice, it makes your maps look less cubeish.
About the lighting i can say, it really still is too bright, it could need more shadows and contrast (i know, it should be bright, especially with this skybox, but you´re using more than 1 outside sun again, which makes a map look like in fullbright mode). Also you dont recognize the light textures anymore, when the overall brightness is too high, some more decent lights with small radius (the first number that comes after "light") would be very nice, so it would look as if the light is coming from that specific source then.
Ammo placement should be ok as it is, didnt try it in multiplayer yet, so i cant tell much about the gameplay, but your map already has a "flow", which is good ;)
The Playerstart and teledest entities aren´t well oriented, do you know that you can edit entities by clicking it first and then pressing the "." (point) - key ? In this case, try using 0,90,180 or 270 (again first number) for playerstarts and teledests (just to be 100% correct then) ;)
Also you could hit the "6" in edit mode, that way you can place pickups and entities exactly on the grid (depends on gridsize, of course, that´s why i use the smallest gridsize to place pickups at the end of mapping).
So: Nice work, keep it up, looking forward to see your next map :)
3/5 (atm)