-Carlos, on Alexia. Carlos Olivera was a former UBCS mercenary serving under the Umbrella Corporation until 2002, where he joined an anti-Umbrella group that evolved into an outbreak survivors' convoy after the global T-virus outbreak during the events of Extinction. Three weeks after the Raccoon City disaster, Carlos and Jill both infiltrate the Chicago facility and rescue Alice whom has been reanimated using a new virus. Before gaining clearance to leave the complex, Dr. Sam Isaacs orders that they let them go.