Resident: Evil Operation Raccoon City is a survival horror third-person shooter. The Umbrella Security Service (USS) Delta team enters the Raccoon City Underground Laboratory, where they meet up with Alpha team leader HUNK. Their mission is to assist Alpha team in stopping Dr. William Birkin from handing over his T-virus research to the U.S. military and retrieve the G-virus. On their way to Birkin’s lab, they find Birkin has paid numerous Umbrella Biohazard Countermeasure Service (UBCS) mercenaries to work for him while the deal goes forward. When they reach Birkin’s lab, the doctor is shot, and HUNK and another Alpha leave with the samples.