well, nice work, but:

to big (you have to search your opens with less than 10 players)
to wired (i often didnt knew where i have been)
no spawns set
if there are only 4 flags, there will be not enough amo.

the theme is nice, but i would overwork it a bit.
make the map more like a path, then enemys have to meet, and build one flag after the other like in facecapture, that minds getting run down.

greez

4 FLAGS??? OMFG! So i uploaded my old map file! LOL!