This is from 24/7 fairplay. Any idea how this happened? Are they known for having incorrect stats, or could this be due to the player statpadding? Modded server maybe?
I believe that is caused by destroying vehicles with multiple people in it, but i could be wrong.
In retrospect, that is some weird stats, he killed 99 people with only 12 smaw hits. Thats over 8 people per hit.