The level is dominated by gray, even the outside area between each base. But as you play through the level you begin to ignore this, and the map starts to get fun. Lighting is good, though I think it should be a tad bit darker outside, as the sky seems to be a dusk-ish type thing. Other than that it fits perfectly. It seems to be some kind of water pumping plant, as there are quite a few pipes all over each base.
Solid construction holds true throughout the map.
Suprisingly the middle area, where most of the action takes place, runs as smoothly as the other areas. This is a big plus on 2fort maps. Online players should love this one for this smoothness. The bots know where to go and how to get there, and I even spied one or two ducking in and out of corners while killing their kindred. The floor plan can be confusing at first.