Sam reached the base and most of the corpses there had reanimated but he could also swear that more zombies were roaming around than he remembered.
Sam had body parts of the earlier zombie he had butchered hanging around him.
This was to move freely amid the chaos and he didn't understand what that creature he fought the day before was but something told him there was more.
The zombies were motionless, neither moved an inch just like back at the checkpoint where their superior and his son had died.
This meant that Sam had to be extra careful with his movements as he didn't want to give them any reason to be active.
Sam walked with his axe in hand, there was no one anyone could have survived because it's been a week since then so if by some miracle they did survive.
They would only starve to death as they would otherwise have no access to food or water.
