While soldiers were fighting zombie hordes from atop the zombie-proof wall on one side, on the other side, soldiers with guns were driving survivors, who wanted to get away from Qinshan Base. After leaving a mass of dead bodies behind, the survivors finally grasped the reality. They stood no chance against armed force.
The exoskeleton armor soldiers exuding an icy aura, all stopped them from leaving. This was not a peaceful society but a world after the Apocalypse, filled with violence and slaughter!
If they made the slightest move, these soldiers would actually attack them!
They were scared and reluctant to risk their lives escaping Qinshan base. Despite knowing that the outcome would not be favorable, at least there was a chance of survival.