Smith joined the Marines in 2005 and quickly up-ranked and by 2013 was a Chief Warrant Officer. He was then given an assistant Sergeant Scully. Then during the Russian Civil War he was sent to work with a special forces team and provide them with Sniper support so that they could complete their mission. He covered them until they entered the facility he then took control of the security room with Scully. Then as his team are escaping he assists Gaz, Griggs, Price and MacTavish by sniping enemies that are attacking them.