Furet, as I know how you play, your highest fragger doesn't overall mean something. Maps like minas should be huge scores if it's your top map. Playing 35(?) minutes of Minas and only get 80 kills is just bad. That's just by seeing how much you scored. 13 ppm is bad aswell, but it compares with your 80 kills.

Like Killfreak said, get a huge amount of kills and less amount of deaths with avg low ppm and you'll have your +.