Not a fan of this map. Tunnels are too curvy which makes it annoyingly slow to move around them. Spikes from the ceiling that block fire are also annoying because.. they block fire. I understand they're meant to prevent spraying, but I think they're too close and stretch too far, so they prevent not only spraying but "normal" fire as well.
If the tunnels are straightened up a bit and have more room, and if the spikes are positioned better and made shorter - this could make it a much better map.