Just to say that Crysis 3 can be a pretty cool game on PC, by playing at "Super Soldier" difficulty.
"Super Soldier" should be the default difficulty on PC.
With this, I have fun, I don't have the casual tips, the AI is not bad at all, and even if we can quite easily mark the enemies (It stays plausible because we have a super suit with a lot of sensors, communications (like satellite), and with augmented reality), It doesn't prevent to die.
I think Crytek should quickly make a patch, because the game has been tested in Normal difficulty (with the console assists), not adapted at all to PC gamers (and still easy for console). So the bad critics are normal.
I bought it because I found the critics quite strange about the difficulty and length of the game. But all people are not like me and will listen the critics.