Okay, one major problem with this game. The first Crackdown was one of my absolute favorites, but this was a huge letdown to me, and it wasn't mentioned in the review, which it certainly should be.
It even took me a whole minute to figure this out, but in Crackdown 2, you are in the exact same city as the first one. Sure, it's a little torn up, and some locations have blockades creating a different atmosphere at times. But if you played the first, you'll find yerself recognizing so many places, that it kinda kills the novelty of a 2nd Crackdown game. Sure, I understand. It's where the Agency is located, and to continue the story from the last, it makes sense (since there never was any closure, and there doesn't appear to be any mention of the last ending from where I'm at in the game). But it's still a disappointment.
Also, that whole superman mentality is clearly shot down as soon as you end up in areas with rocket launchers. Those things home in on you, and fire so fast that if one hits you, you'll find yerself being juggled around for a while. This leads to extreme frustration. But, you can use those weapons too (and I certainly do), so it just makes you enter some areas a little more cautiously. Which, in itself, can be kind of a mood killer when yer leaping from building to building without a care in the world, but I suppose that's where the challenge comes in.