K well here are a few suggestions for this awesome A/D map. Its been a while since I played, so its a wee bit hard to remember but here are just a few.
You need to rename the points to stuff like A and B. After that, change the signs to A and B and such. Please provide lots of arrows, I didnt even know the airshaft entrance was there for a while, and its super easy to get lost.
Change the doors that are actually doors to either not being there or to the metal style gates. most players just think those doors you have made are decoration, and the problem is, some are, but some arnt, SO YOU CANT FIGURE OUT WHICH WITHOUT WASTING TIME.
Expand the platform in the blue spawn so you can still die, but atleast you have more room to move around. Maybe also stick a elavator in there, to explain why there is a pit under this platform. Also, make all the blue spawns bigger. They spend a lot of time in there, so might as well give them something to do.
The arrow over the air vent is a bit misleading, maybe make a ramp going down to it from right infront of the spawn door and remove the stuff at the end of vent, and just make a ramp. its a little time wasting to do all that jumping.
Also breakable glass is cool, but people dont expect it and after they find one, they test every other peice of glass, wasting time. Just remove the glass, or put shards on the floor to show that it was already broken before the time of the battle.
Those are only a couple, Its been a while since I tested it back then, what you really need to do is go have it put in the gameday, get some impromptu testing, and tell people GO POST! OR ELSE NO TOAST! I would give more suggestions, but its a really big map, and I can hardly remember most of it.