So far I played though Act 1 and the first Mission of Act 2 and I am not disapointed. I´m lucky I didn´t watch the leaked Video of the Airport level,it was a very horrorfying and intense moment. (It had a few great moments so far).

Gunplay is great and the story is good, although the "fighting in America" thing seems tacked on so far.
And the first real Mission was amazing.