- Don't know where to report it, so I'll just throw it in here. - 
  
There seems to be a bug with counting the "kills". 
If you kill someone right after he killed you, you seem to get -1 kill instead of +1. 
I witnessed that problem twice. 
  
e.g. I had 10:2 stats. -> In the following round I killed 2 enemies and the 3rd one and I killed each other. -> After that happened I had 11:3 stats. 
e.g.2: A friend of mine got killed by an enemy and killed him same time in the first round. -> After that round he had -1:1 stats. 
  
Don't know if you are aware of this problem. 
  
-- caras