Player scale.
I will add in a basic director? So all it would do is spawn predefined zombies from their spawn brick. There will be a special spawn brick that when wrenched you can choose a type of zombie.
I might include breaking limbs, say for example you shoot their legs off they will crawl to you, and headshot would do more damage.
Edit: the director would also despawn pointless zombies
Please, for the love of zombies, make sure the director only works on these special bricks so that normal vehicles stay at normal vehicle spawn bricks. :)
Also, when you leave the special zombie spawner without a zombie selected, the director is allowed to choose himself? :P
Just an idea.
The limb breaking thing sounds cool.
But more damage on headshot... Most headshot weapons already have a headshot modifier themselves. :P
Maybe something more in the way of Killing Floor: Zombies won't be able to follow you anymore and just limb around a bit untill they die, slashing at anything they touch.
Also if they have any special ability, they can't use it while their head is missing out on all this fun.
However, just them not being able to follow you anymore would be fine i guess. :P
Just throwing ideas.