hello people does any1 know what happened? one day i was playing halo 3 7 on the 7th and i had like 45 xp. and then in a week when i get on again it says i have 0 xp in 7 on the 7th, if you check my matchmaking history it sais that i played like 50 games of it. can some1 help me it says i have 0 xp on bungie.net and my xbox 3060