Halo Mega Bloks UNSC Mantis with Open Hatch and Spartan Warrior in Cockpit Published January 20, 2013 at 640 × 640 in Halo 4 Mega Bloks 2013 UNSC Mantis Review 97115 Halo Mega Bloks UNSC Mantis with Open Hatch and Spartan Warrior in Cockpit