why the level has only one brick texture everywhere? Was it intentional
If not, you definitely need to reconsider that. It just doesn't make sense, nor look good either, honestly.
of the textures, there's one dev texture on the slope
In my opinion, it'd be better if you used a more relevant texture than a dev one, unless the whole level was supposed to be consist of dev textures only, which is not the case here.
shouldn't you place a weapon class (like rifles; preferably the AK-47
and the M4A1) in there? It's just the default secondary weapon (pistol)
for both teams.
than that, not bad actually, I liked the concept heh.
Just that you could improve it in terms of textures and some brushwork.