Here is what I got now. It's about 7Mb right now, pretty large.
Each spawn has lights designating the team, and a lower level exit for them to exit from. I may make a third exit for each team that is a tunnel that travles along and exits on the side of the silo. It's a bitch working with this big cylinder and already the brushwork on one side is a tad strange, but only if you were to noclip outside and look at it.
Each team also have 2 sniper fences to hide behind, they'er next to the path that connects them.

An overview, showing the red and blu sniper fences, walkway and rocket.

The lowest level, for now this textuer has to do, it's alright for now. The tall gates are there to surround the rocket since if they weren't there you could get close to the rocket and actually drop down another level into no mans land.

Another view of the lower level:

And finally, an outside area. Has a clear view of the action below. I wasn't sure what to do with this area but I had some ideas.
A. Have a spectator camera in it
B. A secret area for admins and servers using low gravity
C. Incorproate it into the map somehow
Also, I did not make that tree, it was from some prefab on FPSbanana.

There is one slight problem, I want the sun to be UP in the air, but the default pitch had it on the horizon so I set it to -90 and....well this happened. IT'S A UFO! :v:

Right now I'm not concerned on looks, but mroe on functionality. I'm gonan have fuel pipes going towards the rocket and misc. shit. For now I'm concerned about the lighting INSIDE the silo. The light is fine outside, but inside it doesn't flood through. And using light entities are kind of a bitch, I got an env_cubemap next to each one to try and spread the light, but it's just too dim. Any suggestions?
C&C Is appreciated. Oh, also I'm not sure if this will be CP or CTF. Most likelt CP since I got no good area to place the intel.