I have thrown the sonic batarang. They have went over and found it and i have down a silent take down. I let them even destroy it then done one. But i haven't got any takedowns for it. How do i do this??
It still says 0/3 though. So i didn't even get credit for one. I wish i could go into the challenge room and do this. That way i wouldn't have to keep waiting for the predator challenges to appear in the game.