For the zombie rules I use you can have zombie spawn points that basically designate where more zombies will appear on the board in a random matter if you're feeling generous or right next to the player if you're not. They are generated on the roll of a D6 so I placed a headstone on these bases signifying the D6 number (the headstones I believe came from the Warhammer skeletons box from Games Workshop), the zombie figures come from Eureka Miniatures http://www.eurekamin.com.au/ but can also be got from http://www.fighting15sshop.co.uk/ and to me remind me of the zombies in the barrels from Revenge of the Living Dead.
I painted them with that in mind and covered them in varying shades of red paint and red and brown ink, now the paintjob on these figures and bases was quick because these are gaming/scenery pieces and I didnt put as much effort in to them as I normally would for the reason that the the figures aren't greatly designed but they're perfect for what they are portraying and that was probably the point when they were made. The other numbers 1 and 6 will go on my zombie horde bases probably written on the bodybags with the zombies still in them.
The rules I use are Akula's AR:SE rules on two A4 pages http://akulasblog.blogspot.com/
Four of a kind.
Numbers 2 and 3.
Numbers 4 and 5.
Number 1 and 6.