Currently most tutorials provide only basic AI for games.
A course on making a system for example zombies within a FPS game to incorporate
Ragdoll Systems including damage to limbs to reduce zombies to a crawling state or only bite attacks if arms are gone.
Hunger and feeding on bodies left in scene which reduces on moving about the level
Smell detections (If carrying food that is not in a container or uncooked your detection radius is larger)
Idle, Patrol and Pursuit (And searching after losing the player before returning to patrol)
Alerted State where the zombie has detected but does not know where and starts searching.
Sound system with audio pooling.