I wouldnt disagree that black ops has lag issues .
But just assuming that because you pay a good price for your internet service, or because you run a speedtest or pingtest with good results, that the problem is all on their end, isnt doing you any good.
There is always going to be lag issues with bo .. thats just the facts.
But anything you can do to make that better is helpful.
I had terrible problems with the game in the beginning. Everyone agreed it was the game, but I decided to check just to make sure, and boy I am glad I did.
Speed tests proved I had a fairly crappy internet sevice ( 3 down 1 Up is the only plan available to me ... and at times I barely get half that).. But when I used robotest, I found there was actually a technical issue on top of that. About every half hour I would get a couple pings that were way worse than the rest.
I collected more information about it and called my cable company....... No way it was their problem ....... call the router manufacturer ..... not their problem either.
But by being persistant .... I was able to get enough info to not only prove to my ip that the problem was thiers, but was able to pretty much pinpoint for them what and where the problem was and eventually they fixed it.
Let me say again ........... I still have issues with lag . But now its at least 10 times better than it was.
Now .......... there is also a possibility there are issues in networks between you and them that neither of you have control over........... but it never hurts to find out for sure.