those hunters are fairly simple to deal with once you know the trick. It's those red elite guards that give me the most problems out of all the covenant. They're relentless with the plasma rifle and have good armor.
the flood are annoying as hell i agree. Especially the pod ones that explode
...i can remember numerous occasions when i'd throw a grenade and they'd fly out of the explosion and blow up right in front of me.
..then some of the other ones get up after i shoot them down, and slap me in the back of the head with they're tentacles or whatever.
When i get a cube i'm going to have to buy Prime along with it. That's not going to be for quite awhile though..maybe around april of next year. I'm deffinately going to have to play that game though. It's tough luck too, none of my friends own a cube they only have ps2s and xboxs..