Wow I am such an idiot i thought that since I did not have xbox live >GOLD< i would be able to use the challenge glitch on silver, it turns out after you get gold they punish you. I have learned my lesson if I can't get gold and I am desperate for credits I'll just have to be patient. I just have to wait a week they'll reset my account and I won't cheat ever again. I am also going to have to apologize to Bungie and all of you reach players that I cheated and I am ashamed of myself.