Halo 5: Guardians is now gold and Xbox has released an awesome gameplay trailer. Master Chief, for some reason, has gone rogue and is now being hunted by Spartan Locke and his team. The video has a ton of action and impressive looking set pieces from the campaign, which can be played alone or with up to three other players in co-op online. The trailer includes parts of cut scenes and some gameplay.
Beware of leaks/spoilers as Halo 5 has gone wild.