...But you're not home yet.

Inside, it's utter pandemonium. The underground base is packed to the shoulders - they weren't kidding about it being full - and while you're relieved to be safe from the zombies outside, if you're going to trapped like sardines in a can in here, it might not have been much better. Harsh floodlights illuminate the camp from four different angles.

Nobody comes to attend to the newcomers. Instead, you're just left standing around for minutes, wondering what's in store and listening to the ghoulish howls of terror and delight coming just on the other side of those walls. The gunfire has gone dead now. You're not sure what's going on at all.

After a while, a group of ZERO soldiers comes to your group and ushers the survivors to a man standing at attention - the commanding officer of the camp.

"Listen up: As you can certainly tell, we are currently far beyond the capacity that this camp is rated to hold. We are are in fact, exceeding it several times over. We cannot hold you here. But let's make a deal. We are desperately short on human resources right now and we need fighters. We need people to guard these camps, establish new ones. Any one of you who is fit and healthy can do their part. Everyone else will be housed as well as we possibly can, but we can't make promises. So who wants to sign up?"