I have to give Kevin Spacey a hand for his performance in the Single Player Campaign!
I played the PC version, and it's ok. It's more of the same with differenct weapons (kind of), and some cool toys to play with occasionally. Nothing really outstanding though to be honest. As always, it's a single path shooter where you really aren't in any hurry to get stuff done if you don't want to. Some sections are timed, or need specific keystrokes/button presses to get by.
It's an ok, but predictable, storyline.