Forum:Conter-UAV

I went through this forum and have found, that some ppl had the same problem, but with different callsigns or emblems. Mine is that I just can't get UAV rays callsign. Its written, that I should complete "Challenge: "Sunblock" - Call in 3 Counter-UAVs in a single match." I've done it 100 times while playing on different prestiges. Nothing. Zip. Zero.

Is that a some kinda joke? Or maybe desription isn't right? Thanks.