Nice guide...but the k/d area should be removed. K/D has nothing to do with your skill as a team player.
As an archer, I will have very low kills, but more deaths. It's is hard to get the kill-shot with an arrow sometimes. But in some rounds I will have done enough damage to kill 8 or 9 players. Those players are then weakened and more easily dispatched by the rest of the team.
Also, as a shielder, you can run interference, turtle up, distract enemies, save the flag, ect and not get ANY kills...but help the team a LOT.
Therefore you can be a great player and have a bad k/d ratio. This doesn't make you a peasant or a bad player...it means you are sacrificing k/d for the sake of the team.