Quote Originally Posted by justin871 View Post
I set my XP to lvl 55, my prestige icon disappears and the game starts lagging, however restarting the game results in the game being back to normal. My rank wont go up, nor do I see prestige mode in the barracks. Is it because my game is at version 21.415.8?

Edit: what you put in the number box changes your prestige, not your rank.
This is for experience...