Ashen Eye is a non closing circle map. I had a quick play on it and you start with submachine guns, rather than the shitty Shotguns, and a tank of Oxygen. The idea is to always stay in the Eye of the Ashe where the air is clear. It cordons of a section of the main map into a righting hexagon, MMA style! You can read more about it in STEAM’s description of how to play it here.