ok so i have finished halo3 on legendary 10 times in the last week so what els is there to do i only have 1 xbox360 controler so i cant invite a freind over i havent got xboxlive so what else is there to do i got all the aremer ... plz guys help me out plz!!!!! and i dont wana get another game because of i spent 100 bucks on this so plz help