When it comes to KDR, I don't believe that it measures a persons skill level. People in CoD care about it and think that the higher the KDR the better the player. I see it as the higher the KDR the more chance of a camper. Especially the really high KDR in like capture the flag. In team deathmatch fair enough, but in objective based, it's pointless in determining skill level as them modes require teamwork