... ok...
0. DON'T UPLOAD .bmp PICTURES. THEY TAKE AGES TO LOAD!
1. Face-like map (ugh).
2. Canyon rock walls. It's called canyon for some reason, not box.
3. Bases are too tight. People OR BOTs cannot move effectively at the [small] bases, and it was not uncommon to get cramped with miniguns shooting. More than twice i saw enemy defending BOTs just kill each other.
4. Base front walls are too thin. Make them 32 instead of 16. Mind you, redo all of the base's architecture.
5. BOT behavior: don't defend properly (unless all out cluttered mayhem is defense), don't use sniper towers, take predictable path (left side) too often.
6. Trenches & map size. Since the map is that long, people take some time to get to enemy base. IF they get there, there's little they can do at enemy base (especially if enemies just re-spawned), and either have an unbelievable hard time satying alive OR just get killed. Since you might NOT consider decreasing base-to-base distance, i surely recommend re-think the trench system. As it is, it's just too easy to get stuck in trenches until an exit ramp, and thus get killed often, stupidly. You could think the trenches as in real life, horizontally to base position instead of the actual "straight" cannal style. It surely would make advance to enemy camp/base more an affair of opportunity rather than pure luck like now.
7. Complementing what i've said in the previous point, you should consider a building/construction/your room at the middle of the map, preferably walled out as to separate areas. Then zone the thing.
8. As a curiosity, i got stuck at the flag base, behind, againts the wall. Maybe do the flag base a square instead of the shape it has now? (and proper texture).
This is one of those type of maps that i would never do (unless out of my mind/made by a bet/forced to), and so it's somewhat difficult to me to point all that could be worth a new/different approach without just saying "trahs it".
Still, i hope this piece of a reply is worth to you, as it made me skip 15m of my daily Wolfenstein: Enemy Territory dose.