Going back on it, the enemies were kind of all throw aways. The throw away line about how these convent are some what splinter cell or some shit? Or the metroid prime baddies the Prometheums. The Didact was another throw away villain who I QTE to death.
I guess when they updated the graphics for HAlo 4 they gave Cortana a body upgrade, hips and big tits, couldn't take what she said seriously with that get up.
Though I am glad the Flood did not show up in the main storyline. Can't stand those fuckers.