Rocket, Maybe you should consider adding some sort of randomization to the zombie spawning logic? Obviously there's a lot of people who feel strongly about having very minimal zombie spawns (0-1 per building, ending up at like 200 zombies on a 50 player server) and a lot who feel strongly about a zombie apocalypse (3-5 per building, ending up at >1000 on a 50 player server). Instead of locking things in to one playstyle or another, it might be nice to have variation: If you handle it on the server scale, you would end up with "on" and "off" days - days for hunting and days for surviving. But if you handle it on a CITY scale, you would end up forcing a lot of migrations. Players would log in to find out that the eastern seaboard is swarming with zeds today. Stay away until the swarm moves on, tomorrow maybe it will be the northern border that is dangerous.