Microsoft has released new trailer for its upcoming game, Halo 4. The game is currently in development by 343 Industries, which will be the eight installment in the Halo series. The new trailer shows a glimpse of a mechanized Mantis in action, and new multiplayer in Halo 4 including “Flood” game, in which“a group of Spartans has been transformed into a host of incredibly fast and deadly Flood combat forms.”  the Valhalla map also returns as Ragnarok.

The game is set to hit the stores on November 6th 2012.