Craig Houston is the lead writer for Treyarch. He is the writer for Treyarch's campaign modes since 2006 with Call of Duty 3 and the main writer for the Zombies mode since 2008 with Call of Duty: World at War.
- Craig Houston played Private Chernov in World at War campaign.
- Craig sung the male vocals and wrote the lyrics of the original Perk-a-Cola jingles introduced on the map Verrückt: Quick Revive, Speed Cola and Double Tap Root Beer. Elena Siegman sung the female vocals of the Juggernog jingle, with the lyrics written by Craig. He is also credited with singing the jingle for Deadshot Daiquiri in Call of the Dead.
- Craig also wrote the lyrics for the song Lost, which was based on an original song he had written called "Myself".