I wish, oh boy do I wish, that there was a way to flag this review with 0 stars. Yes. It sucks that much.
As a computer programmer, I know how important it is to make a first impression with your project. Whoever approved this game for launch should be fire immediately. I mean that.
The lagging. The pausing. The crashing. The . . everything technical about this game just sucks. I'm at a complete loss at how this game was approved for release. Maybe after one or two patches have been released it may be playable, but now, no way.
Save your money and wait. If you don't believe me, Google "call of duty black ops PC issues" and be prepared to read a lot.