The problem I see with this:
If leaderboards are ranked only based on WP and not based on kills this will not solve the problem, just invert it.

Instead of focusing players standings on the team roster purely on K/D ratio they should also add a point system.

Instead of being rated on how many kills and deaths you have (like in COD) you would get graded on how well you played tactically and as a team
(i.e. destroying dropships, tanks, cloning stations or hacking , saving other team mates, and resuplying.)

This way if your the type of player who spends half the match giving ground or air support your not left all the way at the bottom looking like you did nothing the entire match

or am i getting the wrong picture and this game is based purely on kills ? o.o

KDR sets the focus on the individual instead of the group. a system that compares how much you did for the group in comparison with others would be great. or simply publishing WP instead of KDR. at the end of the battle.

+1
KDR system hides the true heroes of the battles, just implement BF3 point system and we will be grateful