I believe I went 11-20. I'm super average though. My k/d is 1.06
You must be super consistant.
When I come up against this party of high K/D guys (three of them are over 4.0) that hang around in K/C games in this part of the world I sometimes go 0.50 K/D against them if my team is bad. I never quit though.
Worst was the first round of cod mwr i ever played. I don't remember the score, but it was 0 kills and many, many deaths. Tdm on Downpour.
In BLOPS 2 it was recently a 4-11 tdm on slums iirc. As soon as I got one in the aim, i was shot in the back. Or they came in pairs or i just lost against an intelligent camper, or i just lost one-on-one cause i was lame. That's a sign to call it a day and do something different.
Warning: does not play well with others. PSN:BUGGYBEAR2010