There were a few interesting parts, the building was definitely one of them. Another was the blissful vacationing family being killed in the gas attack. Honestly, this series has pushed more boundaries than any other that I can think of, what with the massacre of 30,000 U.S. Marines in a nuclear blast to our participation in the slaughtering of defenseless civilians en masse to watching helplessly as a happy little girl gets blown away by a toxic gas bomb.

So while the overall story may have been unexceptional, I believe they have raised the bar for mature content yet nobody really seems to notice because of the focus on multiplayer.