12 net levels that, at best, are visually stunning. These levels are dominated by media, not all but most of them. Some great visual effects but at times, we felt a little too tight. There are a total of 12 levels but the Marathon engine will only let you access 10 unless you gather a net game. We played through SkyWay. A good net map but with 5 of us the random replenishing of ammo and weapons, was a little slow and few and far in between. Some really good maps in this pact that allow themselves to be played in various modes.