Christopher McArthur was an Umbrella Corporation scientist working under Roderick Lazarus. Before be re-assigned to Lazarus, McArthur was previously under the command of William Birkin, who worked closley with Albert Wesker. McArthur had once heard Wesker and Birkin talking about disposing of some of the unnecesary employees. McArthur heard his name mentioned, and swiftly filed for transfer. McArthur was re-assigned to Roderick Lazarus, who accepted him eagerly, wanting to know of his rivals plans. McArthur worked under Lazarus for a while, until he was summoned to the Arklay Facility by Wesker. When McArthur declined the summon, Umbrella soldiers were ordered to bring him to the Arklay Facility. McArthur was captured and was placed in a transport truck along with a couple of Umbrella sold