Microsoft and 343 Industries have released a second launch trailer for Halo 4, and this time it’s chock full of gameplay.

The trailer shows off the quite terrifying Forerunners, a breed that’s been locked away fro a millennia and puts the threat to Master Chief and the rest of humanity into a little perspective.

The upcoming sequel is something of a new beginning for Halo; as well as being a departure in terms of developer (seems as Bungie has now left the proverbial building), Halo 4 is in fact set four years after the third title.

If you’re after finding out a little more on one of the most anticipated games of the year, have a look at our multiplayer hands-on preview.