Yeah, after seeing the map, I can understand why it is so big

BTW, absolutely great job about your materials, it is well made. The only one that I feel is a bit to much reflective is the one on the ground in the hangar. Like the specular is set to high. All the rest is great

The music is also very nice. I like the atmosphere very much.
Most of my feedback is gameplay / flow oriented,
Collisions need to be adjusted on those SM all around the map. I must jump to not collide :
http://img85.imageshack.us/img85/7014/screenshot00005g.jpg">
BV are needed on those big SM :
http://img256.imageshack.us/img256/7616/screenshot00004j.jpg">
The SM as no collision & there is nothing under ? Camping spot :
http://img24.imageshack.us/img24/4839/screenshot00002r.jpg">
I found the map rather flat. There is no Z-axis fight at all which is imho not good. If you manage to add some items on containers the better.
The weapon locker are a left down for me & do not suit well imo. One of the weapon could be on the ground inside the hangar & the other one just a bit outside the hangar.
There is to much empty space between pickups (ammo / health) & even with 10 adept players I die most of the time in the middle of the map. I never score once damn it ! I suggest you add some ammo & vials a bit more between weapon base & also add some crate / containers to add a bit more cover.
I found the link gun weapon base rather odd that would be better placed elsewhere like in between the udamage / helicopter.
I also strongly suggest you add some armors, the vest / belt would be a good instead of the link. Helmet & tight would be also welcome between the flak / RL. It could be placed on / between containers or on the ground.
I also found that spot would be awesome for a super weapon like the redeemer or the sniper perhaps ?
http://img156.imageshack.us/img156/1673/screenshot00003s.jpg">
Lastly, make sure players can't get out the play area

A solid map you got there