Infrastructure in the End of the World: I Copy Everything to Build Underground Infrastructure

In the third year of the apocalypse, the surface of the earth has turned into wasteland. My name is Chen Yan, and I am the captain of the seventh detachment of the Iron Fort Infrastructure Battalion. I lead a group of rough guys to dig tunnels, build walls, and take over roads. The base is supported by nuclear fusion, and everyone uses their contribution points to exchange food and oxygen, and life is tight. Recently I discovered an old laboratory hiding technology that can purify the soil - farming! Humanity is expected to return to the ground! But there were not enough materials, people's hearts were unstable, predators were watching, and even the executive committee suppressed me from speaking out. What's even more difficult is that the nurse I have a crush on, Lin Xiaoman, always says that my mind is "full of steel and concrete." Fortunately, I have a bronze cornucopia that can replicate everything. From digging tunnels to fighting mutant beasts, from grabbing materials to fighting traitors, I want to build this broken underground into a new world!