The Underground nuclear fallout Shelter on the side peak of Yunxia Ridge was immense.
Its main gate alone was fifteen meters wide and over ten meters high.
It was originally designed with a world war in mind, built to allow the transport of military equipment, including large-scale installations like radar stations.
Now, abandoned and sealed, it had become a perfect, ready-made nest for the Zerg Race.
The wide entrance was large enough for a Tier Two Tiger Spine Zerg to squeeze through by curling its body, and the space inside was just as vast.
Lin Feng recalled the blueprints the military had provided. They showed the Shelter's structure: a cylinder over four hundred meters in diameter, with four floors, each five meters high.
After the group charged in and killed several dozen Tier One Late Stage Black Spine Zergs, the Guard Battle Group at Lin Feng's side put away their Lv29 Electromagnetic Cannon Replicas and switched on the high-powered searchlights they had prepared.
