Bunkers

those rocks are hilarious. they look like cardboard cut outs:P

you will need ot go do some vertex manipulation to do rocks. there are serval ways you can do that.

The rocks look fake indeed. There's no rock that extends beyond a certain distance, they look like a cardboard decor.
The bunkers looked a it capped of, the shape didn't really remind me of a bunker. Play around MOHAA and lool at their bunkers.

Oh, little thing: a player can get behind these ammo crates but he can't get back up. Maybe a clip-brush comes in handy there?

Neat. Agree with the rocks, but a neat, symmetrical idea indeed!

+good performance for such a big thing.
-bunkers need more props

Maybe even ham it up a bit, and put signs saying:

Carnage, This way!======>>>>>