Class Challenges Aren't Working (Done Playing)

Challenges that either unlock new gadgets or weapons aren't rewarding the unlockable. The challenge shows that it is complete, but when I go to the actual thing it supposed to unlock, it still shows locked and says I haven't completed the challenge. 

To be honest, I think I'm done playing the game for awhile. The super fast time to death, the guns' damage and range not making sense, the challenge reward bugs, small maps, and the still awful netcode have ruined the game for me. It feels like COD and I hate COD. I'm tired of dying behind walls from delayed damage, I'm tired of getting sniped by SMGs and shotguns, I'm tired of slide-kills (which is super unrealistic). I'll come back in like year or something.