With Bungie moving off of the Halo series, audio lead Marty O'Donnell is gone as well, meaning that Halo 4 will probably sound different. Edge revealed the identity of the new, non-O'Donnell music team today: Neil Davidge, formerly of Massive Attack, and orchestrator/conductor Matt Dunkley (The Dark Knight, Black Swan, Inception).

"Hopefully the Halo fans will see that we're being respectful," Dunkley told Edge, "but we've also taken it somewhere else, and maybe onto a higher plane. If you're always trying to reference back, you're not creating new things."

"It's a new journey, it's a new story, it's a new arc," said self-professed Halo fan Davidge, "and so I feel like my job is not to revolutionise or reinvent but to continue the evolution, and I have a slightly different voice to those guys."