Zombies!!! 19 Zombies Island

 

Picking up where the last one left off, you've made it to the island, only to discover it's infested with the undead as well. So your mission is to stay alive, gather resources on the island, gas, food and water and make it to the boat on the other side of the island to get back to the mainland. 

Gathering provisions is what would set this apart from the other expansions and sure you could have some island themed zombie if you wanted. I just think story wise, these 2 expansions would play well together.