This is a CE map from one of my favorite maps in Team Fortress Classic
*copyright 1998, Valve .Corp* Dustbowl
Dustbowl has 3 stages but i have not done much exploring so here is what i got:
This is a sentry gun made by a engineer

This is a dispenser made by a engineer it gives out the main types of ammo in the game (shotgun shells, Bullets, energy cells and rockets)

This is the capture point (the Dustbowl game is like Assault in Halo)

This image is unclear but the pointy things on the ground are called Caltrop, stepping on them cuts your speed in half and lowers your health and armor

This is the main defense bunker for red, it is ideal to put sentries inside

This is the inside of the bunker

The photobucket feed locks unclear but there is a main defensive bunker for the first wave of blue fights, and also there is 2 entrances so blue can advance to the red Capture point

This is an ammo bag, it holds ammo of dead soilders or discarded ammo that a soilder does not need

That is all, i can see an easy mapping, but it might be hard check these Forums for more detail
-Skinning and Modelling
-Project Recruit
thanks for your time post here, in project recruiment or PM me if you want to help i will be updating pics and Halo models of guns