I think some characters are just either bugged or unlucky. Also its in the algorithm to keep a few items back from each player, to keep you playing. My hunter got VoC over n over n ovrr., that n praedyths. N I know guys who never got either, in tonnes of raids. Every1 seems to NEVER get 1-2 guns no matter what they do. My hunter did 2 crotas too n got shards at every CP. I deleted her last week!