u/Designer_Shine_9323

I am new to the game and have set my sights on unlocking the sr33. I got on a game on the correct map and got 3 c4 kills. Then after that i went on another game of the same map and got 2 c4 kills. When i was done i went to check my progress on the unlock and nothing had tracked. I have noticed the same thing with the ar-160 unlock as i have gotten many headshots with assault rifles and none of them have tracked. Is there a way to fix this?