The Zerg thrive in harsh wastelands and would likely sweep across the planet like a flood of death.
The Reapers - in their unstoppable quest for total extinction genocide - would hunt down the humans just because it was their turn to be harvested and the Reapers are incredibly thorough. If they knew there was life on Wasteland Earth, they'd still go there to snuff it out.
The Reapers - in their unstoppable quest for total extinction genocide - would hunt down the humans just because it was their turn to be harvested and the Reapers are incredibly thorough. If they knew there was life on Wasteland Earth, they'd still go there to snuff it out.