Halo 4 trailer shows new Mantis vehicle and Ragnarok map

Have a look at Halo's mech in action

Developer 343 Industries has released a new trailer for its upcoming Xbox shooter Halo 4. It shows multiplayer map Ragnarok, which fans will recognise as Valhalla from Halo 3, and a new mech vehicle called Mantis.

Halo 4 is out 6 November.