I played on Normal a bit last night....Oh boy was that soooooo DUMB! YOU GUYSS?!!? Seriously? You played on such a pathetic difficulty?!
OMG! I just blazed through areas with the normal Assault rifle...Areas where i had to stop, take cover or swap to a more powerful weapon on Heroic lol....Oh and there are lesser enemies in Normal in almost every encounter.
Guys, seriously, you NEED to play on Heroic...You just destroyed the fun in your experience by playing on Normal -_-
Even the elite wasn't acting really smart as it did on Heroic -__-.
If you know how to play shooters on a gamepad, PLAY ON HEROIC!