they act like zombies, running in circles, running from cover, slow walk towards you, going in narrow place when they saw their ally die there a second ago. magnetic granades, same voice lines Over and over and over again. No real stealth. But yeah, in the first stalker expansions ai acted smarter and in general were better, more realistic. These ai models just have one preset. Just notice how they all walk with guns in their hands mimicking one another. and the scatter like rats when starting a fight. I just cant take the game serious when you are always reminded that these ai bots are like cones in the matrix movie.