I was playing one of the maps the other day - base assault. I don't know the map's name, but Russian bases where in a valley with a bridge... there were 3 windmills in what I think was the center of the map? I didn't see most of the map, but there's a rock near Russian base 1. On the hill above that base, near the 2 story pillbox there's a large rock. If you crouch down, you can see through the rock.

sorry if everyone already knew about this..

and even sorrier that's it's NOT a MOB map



i'm an idiot

The map you refer to is Hell's Gate (beta) All the beta releases have now been fixed (hence the name beta!) you need the version: mp_hells_gate_final