Yeah, first playthrough was amazing, but then the 2nd playthrough you realise that the so called random encounters arn't random in any shape or form.
But i suppose this is very hard to do, because sometimes when people play they may not actually find much monsters if its random. Atleast there woudl be a few unlucky people. Also after using the level editor and also loading the actual story maps in level editor you see exactly where enemys spawn and where they walk to, so i dont recommend doing that unless you've completed it as many times as you want to because it ruins it, as:
Anyway i wish there were more enemy types because they get boring eventually. Scary game anyway despite the flaws.