I'm really impressed with how much more fun each mission is in this game. The previous games were all very interesting from a concept level, but the actual minute to minute gameplay was incredibly flimsy. That is no longer the case. While it's not on par with a dedicated shooter just yet, it still feels very satisfying. Taking out a whole group of people on foot, for instance, is actually fun and rewarding. Previous games made it feel as if you were just running around like a headless chicken trying to kill everything as fast as possible. This feels so much more cinematic.
The car chases are great too. Brucie had me chasing down one guy for a good 5 minutes or so. I couldn't believe how cool it was when he slammed the side of a semi-truck causing it to lose its load of pipes all over the road. The way the physics, motion blur, camera movement (first person driving) and everything came together made it feel like a highly scripted, cinematic moment. It was that kind of thing you'd expect to see in a promo CG trailer for a game. There have been a lot of these moments, actually.