Ok, so first guy is obviously a cheater, but the next guys...
http://i.imgur.com/oEEuX.jpg
Over 300k kills and less than 40k deaths. I did some very rough math and estimated that they had the equivalent of 10,000 games where they scored 20 kills and 0 deaths ALWAYS(totals 200k kills). From then on, the deaths gradually increase, but not very much.
Good job!
I have 300hrs of game time, and barely got 2.30 KDR.
P.S
Not a rage/whine thread