When the zombies come to Sydney you’re going to need to know where to go and where to avoid. The Map of the Dead tells you where to find police stations, grocery stores and hardware shops. And where to go to avoid the cemeteries.
Honestly there’s not a lot to this beyond making Google Maps red and picking a few broadly zombie-related points of interest. But kudos to the developers for doing it. It’s worth five minutes of your time for a quick laugh.