Install an Apocalypssia [TACZ] Modern Zombie Apocalypse server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → Apocalypssia [TACZ] Modern Zombie Apocalypse)
There are a few small hiccups, but I've never hosted through another company, so I don't have anything to compare it with. It seems sometimes the animals don't breed as much as I'm "prompting" them to, but other than that the server runs great. There's a little hitch every couple hours but nothing game breaking.