There are more Titans than Warlock in the K/D category. That list is also hacked, all those guys in the top 20 have 7.0 or better k/ds. The fact is, Hunters are the best class and cruciblecentric players are going to play the best class, the rest will be under represented. That is the cold hard facts about all shooters, you play what's considered the best when you are a hardcore PvP player.