Played the map today, and it was pretty enjoyable. There were a couple points that seemed to be bottlenecks, but it still played pretty well with 4-6 people. The ramp with the 2 boxes on it near the base entrance is one. If you're on the high path in the center, you're about forced to drop low, so it's easy for somebody to hang around that ramp and hit people from both the high and low path. Also, the middle is kind of a straight shot, so it's easy to get kills shooting straight across to the enemy entrance to the center. The secret path is kind of cool, but perhaps it should be made a little more obvious. The high/low paths seem to flow pretty well for the skilled players, but you might consider adding some paths suitable for new players to get up high. Also, the ramps to the flag don't flow very well. It feels awkward getting to the flag from below.
Oh, and some of the spawns don't have CO2, and I don't think there's much (if any) lying around in the map. Other spawns give you 1 loaded co2, and some give you a loaded co2 + an extra.