What are they?
Al zombies are zombies with a route programmed into the game script, they attack those who pass on their way. These zombies were probably the residents of cities who were infected (which explains the existence of these zombies in urban areas).
Attack
A.I Zombies are extremely weak, dealing 4 damage per scratch to survivors.
Life
They have around 75 HP, players are rewarded with $5 when they kill an A.I Zombie.
Where are these zombies found?
As said, A.I Zombies are found in dense and urban areas:
P.S: i don't remember the others
Pictures
I don't have any more images, if you have any put them here.