Hi,
I have played several hours and noticed that there are every now and then gliches in gameplay. Some are graphical but the biggest problem is enemies behaviour. They do not always notice dead colleagues, there are many sudden freezes during battle. Also they don't seem to move around in camps and although difficulty setting is high they don't seem notice/hear things that happen near by.
How long players have to wait possible patch for this issue? Thanks for the comments. Excluding glitches the game seems to be 10/10.
P.S IGN.com also mentioned the bugginess of the game