I've seen too many machoistic (yo it is a video game lol chill) responses to player complaints here with "get better kill more" esque rhetoric and we need to remember your personal performance and k.d doesn't matter at all. Save for one specific game mode kills aren't as important as teamwork. And if your team is crappy and you do good, doesn't matter, still lost.
Please remember to stop trying to over perform individually, revive your mates and play socially.
This 12 year old showboating is one of the biggest problems in PvP.