I must admit I had 1000s of hours in this game before the AI got changed. Horde night used to be great when you got surprised by a couple of zombies that had 'got in round the back'.
Now they just tend to line up and wait to be smacked on the head, I rarely play anymore.
I miss the random AI so much. I also miss the zombies ability to smell. Night time is now way too easy. I used to spent the first few nights in a dark corner hidden (with my meat stashed away) terrified. Now I just treat the nights the same as days.