Believe it or not, but CO Black Ops is the first PS3 game I've ever played. After four days of playing time, my K/D ratio was at about 0.60. Unfortunately, my internet contract had finished, which meant I was without internet for one month! I've now doubled my K/D ratio to 1.25 and growing (7 days). I rarely get under a 1.50 KDR unless I'm playing SnD.