I have made a normal zombie based on the ones in the L4B gamemode (Gamemode_Zombie).
This zombie does not zombificate other bots, can have different moving speeds (every zombie is unique, kinda), can have different melee damage values (depending on speed) and automatically uses the random appearance feature of the default bot system.
I have also remade the zombie tank. He behaves pretty much like he used to.
He punches you away from him, growls at you when attacking and when being idle...
Work on the zombie witch has also been completed.
She sits down when being idle and cries.
When shot or touched you will have startled her and she will attack you, killing you instantly.
Work still has to start on the boomer, hunter and smoker, probably in that order.
Any suggestions or feedback are welcome, i try to base things on how they were originally but i might change things a bit up.