Steep ramps (maybe 45 degree?) that extend out from the center. The ramps are kind of fun the jump down (is kind of like doing a big ollie for the skaters out there). The length of the ramps makes them a real trap. Once your running along a ramp there is nowhere to go but the other end so its pretty easy to predict where your target is going to be. Railgun is in a prime spot for camping as well.
Some good things happening, and the lighting is great, but the gameplay is lacking :[