The Vanguards

A rock from outer space had hit earth and destroyed a chunk of the planet- if only the story had stopped there. Fifty years ago, an asteroid had breached the stratosphere, plummeting unto earth, just as expected by the experts at CNEOS many years ago. However, what they did not expect was the things that came out of the asteroid. The world fell into chaos and confusion. The military stood no chance against their number. The leaders abandoned their people. And now, fifty years later... we exist.