BF2S Forums Another prerequisite for PFC??

Hi, just wondering, is there some hidden prerequisite for being promoted to PFC? I have 590 points but I haven't been promoted yet...I took a look at where I am in the leaderboards, and though mostly everyone's been promoted to PFC, there are a few other people who are still at private...I checked out the UBAR and it said you need 500 points and that's it...