after preventing an explosion in the tunnels, pierce enters secret service-held territory. pierce must fight, non-lethally, through secret service agents ordered to stop him because he has been classified as a rogue agent. after exiting the train depot chamber, pierce eventually reach the white house, though he has to fight his way, both lethal and non-lethal, through both costa sentavans and the agents who, for unknown reasons, are with them. he also comes in radio contact with the loyal agents holed up inside the oval office with both the president-elect and vice president.