Establish your army build and expand your units with the halo unsc mantis by mega bloks the unsc mantis is the new multi purpose battle mech that can turn anyone into an unstoppable one man army r its reinforced front facing armor helps protect of the unsc spartan warrior inside while the heavy machine gun and 5 tube missile launcher makes short work of enemy unitsr buildable unsc multi purpose battle mechr buildable loading and repair bayr unsc trooper spartan in warrior stealth armorr we