Yesterday i done some crucible matches and in everyone i had over 25 kills with a 8>k/d In the final match i had 32 kills and a 9.0k/d rating....the rest of my team had some scrap kills as usual. But the guy at the bottom of my team with 3 kills and 14 deaths got an exotic. I was done....PS button > close application>throw down controller. You dont earn anything in Destiny other then whats at the normal vendors. The rest is luck.