Immediately after finishing his highschool in East Texas, Carlos joined the US Air Force.
On the run from the authorities, Carlos and the others formed an Anti-Umbrella group in order to oppose the Umbrella corporation. At an unknown point of time Alice and Jill left the company; Alice's departure is a result of the guilt she feels for killing Angela Ashford. Jill was spotted by the FBI and surrendered to them, allowing the rest of the group to avoid capture. Sometime during the global outbreak of the T-virus, Carlos and L.J. joined Claire Redfield'sconvoy.