In your opinion, what do you think is the most useless perk of MW2, including death streaks? I personally think it is Lightweight, most people have enough patience to not run like a person on roids.
(P.S.: Can you guys listen to this song, and tell me if it would look good in either a GTA 4 machinima or a MW2 machinima? http://www.youtube.com/watch?v=bcuAw77J8_Y )