He first gained fame working with IO Interactive on their Hitman games, and has since composed music for the Borderlands series, as well as games such as Forza Motorsport 4, Darksiders 2, and Warhammer: End Times - Vermintide. However, he is most likely best known for his wonderful work on the first four Assassin's Creed games, out of which the second stands as perhaps the best of all.