We propose a new trailer of the highly anticipated Halo 4 , designed to give away to the pre-order of various editions announced for the game. In the movie we can admire some very short previously unreleased scenes while we listen to the pinnacle of one of the music made by 343i and we hear the voice of the mysterious "old enemy" of the game, where all clues lead to think that it's the teacher, key character of the saga whose story is told in Halo 3 terminals and in the books of the saga of precursors. Good vision!