Engineer Challenge 3 : Dead Air. Broken

Despite dealing enough damage to complete this challenge 3 times over, and getting multiple aircraft kills with both the rpg and stinger, my challenge still says 0/2,500. I have tried tracking and tracking the challenge, using the default engineer classes, and shooting down the recon UAVs nothing works for this challenge. I have looked through the forums of others with the same issues and am surprised it’s still not fixed after all this time. Probably gonna drop the game until this is fixed because after 6 games of doing nothing but shooting down aircraft with nothing to show for it, I’m not having fun anymore.