the halo universe is a galactic world full of things you never see or hear about in the halo games,thus that. for instance,did you know that a deacon grunt's armor looks like the prophets robes? or that lighter than some was supposed to be in halo wars just like dadab? halo is a different first person shooter from other games. its universe is compelling as hells ass,you can ask more questions about this universe . so play halo and kick cods ass!!!