You are just receiving the bad end of the lag comp, most of the 'problems' are minor nuisances that are exacerbated via the lag.
Maybe. However, what are people who are having this problem supposed to do? I notice that I have 3 bars FAR more than my buddies do. Whenever I have 3 bars, I basically have to be already scoped in waiting for my opponent to run around the corner if I want to have ANY chance of winning the gun battle. I pull host about 1/3 of the time in Blops1, so maybe the lag comp is hitting me harder than others, but either way, it makes this game hell.
Everyone is dealing with the same problems. I unload a clip into someone, they don't die. The game is broken. There's something really wrong with it. I oft wonder what my stats would be like if I didn't get screwed over and lose stupid gun fights, but that's just a thought.
I play this game because my friends play it, not because I think it's good. I loved black ops 1 and treyarch, so it actually hurts to admit that.