While we are still waiting a few hours before Microsoft kicks off the E3 2014 conferences at 2:30AM AEST, Konami's upcoming open-world take on the Metal Gear Solid series has accidentally leaked to the Internet, offering up a five-minute trailer with a very rad soundtrack to boot.

The trailer showcases what looks to be all in-game cutscenes, showing of Konami's FOX Engine which was first scene in-action with Metal Gear Solid V: Ground Zeroes, a more pre-sequel to Phantom Pain. Featuring a rather gruff looking Snake voiced by Hollywood star Keith Sutherland, the trailer gives us some brief glimpses of events unfolding after Ground Zeroes so be warned of spoilers.

Check out the trailer below and we'll hopefully see more at either Microsoft or Sony's E3 2014 conference in due time.