Challenges need a rework

Some of these challenges are seriously over the top. 30 Headshot kills in a match? You're average player doesn't even get 30 kills total, and yet you want us to get 30 headshots. 

Most players dont have hours on end to dump into your game. If they were challenges that only required grinding it would be a different story. Having content locked behind something nearly impossible for you're average player is ludicrous.

Repair vehicles for 6,000 pts in a match. 30 explosive kills in a match. Pretty sure its impossible to get 4 headshot kills with a pistol without reloading. 50 kills in 1 life. 

Not to mention half the challenges are bugged anyway. So even if you did manage to complete one of these impossibilities, there's a chance it may not even count.