Played this map in beta test server, here's my feedback:
The fog is still a bit to strong. From a distance you couldn't tell if the person was on your team or not so you just guessed and shot that person. (maybe you want that as your gameplay, who knows). But with the darkness of the map, the high spots become a huge advantage, making camping more useful then rushing. Not sure how you'd fix that since I don't map, but is it possible to have more lights on high parts to brighten it up a bit?
The low gameplay was fine. I'd suggest making the mid ice-path more open instead of feeling like a tunnel. (so you're not spraying through a little tunnel, you get more room to do stuff.) Also maybe make the sides of the 'mid ice-path' less steep so you can do jumps off of it. It helps as an escape route if you're ice and a guy is their main, gives more options I guess.
I like the addition of the fence path. Still relatively campable, but I'm sure it could be worked around with teamwork. Very well made map, and the gameplay is pretty fun. I think I was one of the only ones who knew just about every jump when I played it, so it'd be interesting to play once everyone knows it. Goodjob on it! Hope it gets played!