I have not played any of the First Strike maps because I have not purchased the maps. But with the PSN being down recently and needing a FPS fix, I popped Black Ops into the PS3, started playing around with bots to get a simulated multiplayer experience, and quite enjoyed the game. My first online experiences with BO come on the tail of being a bit burnt out on FPS. Now that I have been playing some MW2 online and got some of that online FPS craving going again, I would probably enjoy BO more.
This rediscovering of sorts had reminded me of some of the issues I originally had with BO though. I am still quite annoyed that Treyarch decided it was a good idea to be a lockout feature on the FN FAL and M14 if shots are fired off too quickly. I have really enjoyed using the FAL in my bot playing and would consider using that weapon all the time if it was not for the lockout crap. It also really hurts my gameplay that the all of the pistols, minus the Python, are three shot kills close up in BO; that completely destroys most of the usefulness of a non-Python pistol. I have had a countless number of encounters in MW2 that the quick switch to a pistol because of needing to reload my primary weapon made all the difference between a death and continuing a streak. Now I could use the Python and much like the Magnum in MW2, I do not care for the huge visual recoil and the effect it has on my ability to put bullets on target.