Being Sacrificed at the Start? I Become a God by Swallowing Ghosts

When the apocalypse came, I became cannon fodder pushed out to feed the zombies. As I was dying, a mysterious voice told me that I was the chosen "ghost eater". From then on, I can eat zombies to gain superpowers, and I can also read their memory fragments. When I devoured the captain who pushed me out, I saw the shocking truth—— It turns out that this doomsday is actually a carefully planned human eradication plan. And my revenge list has changed from one person to the master of the entire doomsday game.