Well, you have to be careful about that too. I've been on a LOT of shitty teams and even though I'm the best player on the map, the 10 other pricks on my team are off dicking around so my team ends up losing. I guess my point is, strictly saying wins in a match = rank isn't enough to motivate some people because people are trying out new weapons, going for a specific badge, etc. Hell, I'm currently in the process of getting bronze medals on all weapons, which means I'm playing with weapons that aren't as effective (I fucking hate shotguns).