Played my crucible match for my treasure box. It was against a sweaty trailshard and his party-chat-buddy. I could kill his friends no prob but no matter what the range his doctrine would melt me. He was a voidlock and so I can confirm your theory. I wasn't really trying to win so in hindsight I could have tried sniping him but I was really just hoping for a quick match so I could move on.