Longer Ending
Complete 'Halo's Campaign' on Legendary for a longer ending movie.
100% success rate. 

Get On Top Of Sidewinder
Here is a really good way to fool all of your friends when playing multiplayer on sidewinder. Take a tank and put it by one of the caves. Then, bring a ghost up there and ramp off the tank and you will flip on top of sidewinder, where it is good sniping but you can get spotted pretty easily so watch it and be careful.
Submitted by Daniel. 0% success rate. 

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