If they are besieged by hundreds of zombies, they may be able to clear them out, but if they encounter a zombie tide of hundreds or thousands, who can guarantee that the protective shield will not have problems within 500 meters?

Therefore, a small team for foreign construction base was established, headed by Song Ci.

"We need to build a physical protective wall about two kilometers outside the base as our first line of defense against zombies."

Song Ci stood in front of a blackboard with a diagram drawn on it. It was a floor plan of the base and his preliminary idea of ​​the location and distribution of the defense line.

This is an office.

In the second residential building, several rooms on the first floor were merged together.

Song Zhi also added tables, chairs and benches inside to serve as an office and meeting room for planning and building the future base.

Song Zhi had no idea about the office building yet, so he just built a simple one.

"What material should the protective wall be made of? We don't have that many rare metals here. If we use concrete, won't the defensive effect be insufficient?"

A middle-aged man raised his own question. His name was Xie Dong. Before the apocalypse, he worked in the construction industry. After the apocalypse, he was lucky enough to awaken the earth-related supernatural power.

He came here with Yu Jin, and his ability level is second level.

"Tsk, that's true. This is my initial idea. It may need more improvements when it is implemented later." Song Ci felt that what he said made sense.

He forgot that this was a preliminary base and there were almost no such supplies.

Xie Dong continued, "It's not just the materials. Construction is also very difficult for us. It's been raining outside and the temperature has dropped a lot. Winter will come soon. If we want to start construction, we have to wait until next spring when the weather is better."

Xie Dong's words were well-reasoned and everyone looked embarrassed when they heard them.

"That's right. Well, we can only take a long-term view on this."

Song Ci sighed softly.