If I remember correctly, Warhawk had Sony based servers (blue ranked servers in the server list), listen servers, or people could use their PS3s as a dedicated server for others. I believe the game gave you a trophy for providing a dedicated server for a certain amount of time, and possibly some other in-game reward to serve as an incentive. I don't remember exactly. I liked the concept, though, and I hope it comes back in Starhawk.