Global Apocalypse: Zero-Yuan Purchase of Arms for Major Powers at the Beginning

(Rebirth + No heroine + Artifact + Superpower + No Virgin) If I can buy it for zero dollars from the arsenal of a big country, how should you respond? When Qi Hao was attacked by the same kind who coveted the artifact at the critical moment of saving mankind, he finally reluctantly detonated the artifact and buried everyone with him. Human civilization suffered the most serious alien invasion in history, two at the same time. The technology that mankind is proud of is replaced by new science, and the world has entered a new era. Human beings are forced to filter, and those who fail become the nourishment of humanity in the new era. Humanity has encountered meteorites, tsunamis, extreme cold, extreme heat, and heavy rains. Those who can survive are the real children of the apocalypse. Various surviving creatures have also mutated and become unprecedentedly powerful beings. Qi Hao was reborn and returned to three months before the end of the world. He found that someone had used a retrospective artifact and brought back the artifact from his previous life! Before the end of the world comes, rely on the ability of the artifact to stock up on materials and weapons, build an apocalyptic shelter, and be prepared to meet the end of the world! In the era of mankind's last struggle, I, Qi Hao, am back!