As far as I can see, the top route's going to be a sniper whore's heaven. The top route is bare and empty, having very little cover from a sniper's random spray, also, the background color, scenery, and other things don't really make it look underground. For one, since when did trees grow underground? And it's really red, add a shade of black to brown, then add some colliders at the top to block some spray. I'd give it 2.5.
