Know ye not that mission accomplished in less than 15 minutes? In this video I made for months you can see how to do a mission in 6 minutes even though I died xDD Sorry in advance for the quality, I recorded with a camera well before I have to get the catch, but no matter, we can see well what to do in the video.
Good luck and enjoy those 15,343 cr!
(like and suscribe!)
Challenge Co-op Dash (15343 cr) - Halo Reach
~Cya
[Edited on 12.26.2011 4:13 AM PST]