I was board so i decided to see how halo 4 elites compared to the other games. Defense wise their about the same as reach. Reach can take a few more AR rounds but 4 can take more plasma/storm rifle rounds. They're the same in PP rounds and melee. As for the AI they seem to me to act lot like halo 2. What i didn't realise is how much elite defense has dropped since halo 2. Back then they could take double the melee and and more automatic fire. Plasma defense hasn't change much.