okay map. it's a little dark however, to the point that it's somewhat annoying to play in. the layout is pretty basic and I don't like the clip. Generally in maps if you're going to include an invisible forcefield it should be explained through the map theme or just used sparingly so you cannot walk through small parts... But having this large area that you can go into but you cannot leave makes no sense. Why would you want a sniper spot that you cannot escape from? If someone sees you all they have to do it sit and wait for your head to pop up and they shoot. So... Remove the clip, or at least justify its existence by putting up particles where the clip is. At least then people will realise it's an electric forcefield rather than just getting frustrated that they can't move.
Also the skybox is conflicting with the main color of your map. red and green together makes little sense unless you include things that contain both colors to bring them together.
On a side note, nice adaptation of the Demon Hunter band's logo :P