in 2007, barton wrote the score for the highly regarded first person shooter " (with harry gregson-williams)". he teamed up with the same developers at their new company respawn entertainment to work on the music for "titanfall", an online-only multiplayer shooter. barton also created the music for the 2016 sequel, titanfall 2 and its battle royale sibling, apex legends in 2019. his other game work includes additional music for two of the "metal gear solid" games as well as the game score for dreamworks animation's "how to train your dragon".