its not hard and takes very little skill
thats a lie. Today I got Hammer Time and Came...from...behind.... in one match. do you know why? because i beat god-**** Campaign Legendary SINGLE PLAYER. It's all about skill in halo! I've tried that tactic before when i was a newb, but i could never get my sniper rifle to point the right way and take off the chieftein's helmet! It's all about strategy, what weapons you take into the fight, and more importantly, your previous experience. The more you play halo, the more it becomes adapted into your brain as a life path.
....sorry about that, i dont like it when people insist on using criminal and non-honorable ways on beating levels.