i just ranked up to seargent, relogged to get my new unlock, and it shows me as corporal still, i go back in a game, and i rank up again to seargent AGAIN, i relog even again, and im still corporal... whats the deal with this?!?!?!?!?!?
Time is your friend. It takes time to update, just wait and it'll solve itself.
we are sunday, expect ur promotion to be updated somewhere monday morning or late tonight.