Go buy another xbox, get four controllers, buy a second copy of reach or open your xbox. Then go boost grifball.
Explain, what methods in my guide will get you banned? Because idon'tthinkso.Follow this boosting thread, but be careful, some of those methods could get you banned.
Here are a couple of easy campaign boosting methods:
War Machine/Right of Way
ONI: Sword Base boosting (gets you multiple commendations)
If you have already done those, refer to supers0ak's thread I posted above.