The original F.E.A.R. always stuck out to me for its AI. Not because the actual AI is very smart - most enemies still are dumb lugs that try to get the player a

The original F.E.A.R. always stuck out to me for its AI. Not because the actual AI is very smart - most enemies still are dumb lugs that try to get the player and have basic "is seen, rush down" AI, but because the player gets a lot of feedback for their actions. The main way to trick a player into thinking an AI is smarter than it actually is? Have their voicelines "cheat" a bit and respond very vocally to things the player does near them; even if the enemy can't see the player, the idea of "oh shit, they heard that" can really enhance the seeming intelligence of the enemies. Given that F.E.A.R. is a horror themed shooter, that's a big boon.