The latest trailer from 343 Industries is all about Halo 4's multiplayer.
At this year's E3, gamers were invited to try out new maps, new weapons and new modes, including Regicide (where killing the King gets you extra points). The trailer gives an overview of the content shown at the event, as well as commentary and reaction to the new features.
This isn't the only trailer released by 343 in recent days. The Infinity trailer can be viewed here.