I think i have some what solved the confusing and frustrating issue of creating radiation zombies. I took the scorp 7 item and zombie table from nelson's map and implemented them into a test map; I then when through a very frustrating process of figuring out how to get them to work. I figured out that placing the navingaton down then the zombies then i placed the zombies, put down the deadzone rebaked the navigation and that worked. I have a file of the item and zombie spawn tables saved, i will happily share them with anyone who wishes to make these zombies. (Word of warning save your existing item and zombie spawns before you implement the radiation zombie tables as they will erase your current ones.)