Rampage: From the Start, I Command a Million Evolved Zombies

[Apocalypse + mutants + zombie evolution + stockpiling supplies + rebirth] In the apocalypse, humans and zombies evolve special abilities alike. After being reborn, I want to become a zombie! In this wasteland, humans slaughter one another and are more terrifying than zombies! I'll buy up the whole world in advance, store a trillion worth of flesh, and evolve into an invincible Zombie Emperor!