Some fire fightmedals earned don't appear.

I’ve always enjoy playing fire fight, and in order to become accustomed to the controls for PC, going from Xbox 360, I decided to fire firefight.
Played fire fight for over 40 minutes and got the award ‘Sunday-driver’. After completing another 10 minutes of game play I ended the match and went to take a look at the award ‘Sunday-driver’ only to find it wasn’t there along with many splatter spree missing along with others. Map was installation 04 on easy, and quit shortly after finishing the bonus round just as the next set began.