I just finished playing the campaign. After the first 3 chapters, I wasn't very impressed, but once you get to Vekta City, the game improves considerably. Areas are a lot more open than previous KZ games and I found myself lost a number of times. At first I was frustrated by this (because it was unexpected and I just wanted to shoot things), but then I realised that GG was taking a page out of Naughty Dog's approach with TLoU and enjoyed the exploration.
I played this back-to-back with BF4 and CoD: Ghosts (PS3) and this game is pretty tough in comparison. Mind you, I did think that both of those games had their difficulty levels dialed down a notch compared to previous iterations (played on Normal). Initially, I died a lot more than usual -- but after I started utilizing the OWL properly, things went more smoothly. However, there is a part where GG decides to give you a lesson on roll, pitch and yaw, and I must have died close to a hundred times (usually within 7 seconds lol), before the muscle memory kicked in.
As usual the graphics are at the top of the class for consoles (both campaign and multiplayer). Also, the gritty narrative has improved a lot and is not just an afterthought. I've only dabbled in multiplayer, but if you're familiar with KZ, it seems to be more of the same. It's fun, but isn't gonna steal anyone away from BF or Cod.
Overall, a solid effort from a top notch developer. However, I do hope this is the last KZ game for a while and GG focuses on a new IP.
Edited by Mikazaru - 11/19/13 at 5:37pm