Also, if you were interested (or anyone else who would consider modding DayZ in future), the Workbench editor is available with one of other Bohemia games - Take On Mars. It's of course not working with DayZ, since Take on Mars is not running on Enfusion, but it allows you to create pretty much anything and it's the "closest" you can get to actually modding DayZ, as both games will share a nearly identical scripting language.