Modern Warfare 3, even though the idea that you're desperate to see how the narrative evolves is a touch ... naive on our part. Still, we're going to be very vague about the list of achievements for the game that just popped up on Xbox360Achievements.org.
So, all we can say is that during Modern Warfare 3 you'll "escape" three things and "destroy" four things. Oh, and six cheevos require "killing" things, so we know there will be some killing, in the Call of Duty game. Also? Two require "aesthetically-flawless cake frosting."
No, no, that's not true. But there is killing.