Official Warzone Accolades Trailer of HALO 5 Guardians, the 2015 Xbox One Game. br br Halo 5 Warzone accolades commercial celebrates the all-new multiplayer mode 'Warzone'. Halo 5: Guardians made history as the biggest Halo launch and fastest-selling Xbox One exclusive game to-date. Halo 5: Guardians is available now exclusively on Xbox One.