Halo CE: Finish The Silent Cartographer without shooting, grenades, melee, dying or restarting.0
Single controller method.
This is pretty easy on easy difficulty. The only trouble spot is the sword elite on your final run out of the last structure. I suggest you bring a warthog into the final structure and leave it after you go down 1 or 2 ramps. Then get in it again after you run by the sword elite on your way out. Drive it out to where you get picked up to end the level. It will kill or distract the hunters as you wait to get picked up.
You can do this on easy difficulty and it is OK to drive a warthog and have it kill enemies.
Final room overshield location: When you reach the final room and activate the map head out the back of the room and follow the path around to the left.