A few minutes earlier, back at the survivor camp.
*Ratatata!*
"That! Those are gunshots and it sounds like coming from a machine gun! Is a group of survivors fighting zombies in the dead of the night!?" one of the night guards yelled in horror at his companion, after all, if a swarm of zombies heads towards them, then they can only pray that walls would be able to hold them off or they're doomed!
The sounds of wild gunfire immediately awakened the survivors in confusion as they immediately jumped out of their beds, grabbed their weapons and ran outside, as they thought that the guards are fighting a lot of zombies, but when they reached outside, only now do they remember that they don't have that kind of a firearm here.
The survivors continuously ran outside while holding their own weapons in their hands, and most of them ran on top of the wall to look what's happening outside.
*Ratatata!*