Lots of people have been complaining about the campaign but I found it fun enough, especially once I upgraded my semi-auto sniper rifle to make it into an absolute death machine. The PC version was OK for me but it's very heavy on the 780Ti and going under 60fps does bad things to the aiming. I reduced the rendering resolution a bit to keep textures on High as they are terrible on Medium, and I really wish I could have turned off the chromatic aberration.