In the previous mission, Ray destroyed the UAC and its network of Nukage production facilities and was decorated for it by General Kawasaki. Eighty percent of humanity has since died or turned from the Nukage fallout, and the remaining survivors are regrouping in an effort to take back their cities. Ray has spent the intervening period in intensive firearms training under Kawasaki's supervision and has become something considerably more dangerous than he was before. His final assignment is a tropical coastal region — beaches, small towns, historic ruins — that Nukage has turned into something unrecognizable. Many of the people Ray knew here are now among the things he has to kill. All living survivors have been evacuated to Japan. He goes in with nothing to lose and enough firepower to make the local situation significantly less complicated.