I'm not sure what happened tonight.
On the original Black Ops I ran with a 2.75 KDR on MW3 I ran with a ~2.4 KDR. I started off Black Ops 2 alright, just simply exploring the maps and trying out the guns, running with about a 2.1 KDR.
Tonight though holy smokes, I just got lagged up something fierce. My KDR fell to about a 1.75 (I don't remember the last time I played a COD game with a sub-2 KDR), and it just felt like my bullets were not hitting anything. There was one moment where I flanked and started shooting a camper in the back (super easy kill), hit markers everywhere, but he somehow turned around and pop-pop, I was down. The killcam literally showed me hitting him once. I have been hearing a lot about lag issues in the COD games, and I have never concerned myself with them, because I can usually play through it. Tonight though was nuts.
I try not to jump on the bash wagon especially since the game is brand new, but I have never experienced nasty lag like this before. My interenet is very modest, to poor infact, I have around 7mb download and 1.5mb upload, so I am guessing that has something to do with it. However, I have never had an issue with it before. I'm not willing to upgrade to a faster internet just simply because a game lags. I will just have to get better, haha :)