User blog:Slowrider7/I will squeal like a school girl if this is in CoD7/MW3.

The ability to decide the story by your personal conflicts, or maybe skillfully. Like say, if you dont blow up the AA guns in time, the story will still advance, but you will not be able to get an ammo drop later and restock ammo. Or like in Splinter Cell, you decide wether to kill people or not. I know this isnt interesting to most people, but it would be a fresh change to Call of Duty, one that Treyarch REALLY needs after MW2.