The ability to choose what approaches you could do in some sections (despite it not effecting the story as a whole as much as I'd like, like in BO2) was really cool, and the whole board thing, looking at evidence, and more really helped me get more immersed into the story. Only thing I didn't like was that Hudson's and Mason's voice actors weren't very similar to the original ones, which is fine but kind of sucked at points.
Call of Duty: Black Ops Cold War