 and Phase Two (1.35) included the introduction of a new "Sonoran Desert" Open Zone, additional mission styles, including 10-person defense raids and Special Ops missions, Consumables and Salvage and an overhaul to the in-game credit and token system.On April 2011, Hi-Rez released "Free Agent" highlighting a move to free-to-play, balance changes and the introduction of new end-game raid content, Dome Defense.