I got time on target and 10 shards. The first nightfall I did today a kid got a mida. The 2nd a kid got a hardlight. They both had the lowest kills. That's a pattern I'm beginning to see. The kid who got the mida said that his theory is that if u skip all the engrams and get the lowest kill total ur more likely to get an exotic. The last 6 nightfall I've done the guy with the lowest kill total has gotten the exotic. No lie