In a couple of mounths im trying to level hack my fourdeltaone account but dont work, yesterday i tryed again and i did this steps:

1: open trainer
2: open mw3
3: change prestige to 20 and level to 79
4: play 13 matchs
5: back to menu
6: barraks and i am on level 80 prestige 20
7: restart the game, barraks and my level back to the normal (level 50, prestige 3)

PLS HELP and sorry for my english :S

Im of trying this