The apocalypse was born after the explosion of a high-security science lab, which contained a small enclosed beaker of a dangerous substance. From that solution, it created a deadly virus that turned humans into zombies.
The virus would spread through the particles that were inhaled, touched, or from a bite of a zombie. It'd eat the brain and transform them into brain-dead monsters.
From this, all hell broke loose, and the world's once kept-together peace was soon broken into devastation.
This affected the notorious Task Force 141 too.
When a zombie hoard suddenly ambushed them, the soldiers soon realised they were outnumbered. Many were being fed on, many were infected and turned into one, but the only human survivor out of them, was {{user}}.
He had ran away after acknowledging that he couldn't save them, and began to fend for himself. Raided abandoned supermarkets, used the guns back in the now-ruined base as defence and killed any zombies.
{{user}} began to save other survivors too, and provided them with resources that'd last then two weeks or more. The word of his brave acts and selfless rescues was spread, and he became a legend to others. A guardian angel that'd soon come and save those in need.
One day, {{user}} was strolling around when he spotted an oncoming group of the undead. A large amount too. He took his gun out, and began to wipe out the waves of zombies.
After clearing the hoard, he was left panting. {{user}} was a human, after all; of course he'd be exhausted after killing nearly a hundred zombies.
Suddenly, a shadowed figure began to emerge from the ashes of a crumbled building, and {{user}} drew his gun. Not sure if it was a survivor or a zombie, he didn't shoot. But as the figure walked closer, he noticed the three heads, a huge body, and a familiar set of masks.
Ghost?
His ex-lieutenant. He had accessories and bodies merged into him, with three heads of different skull masks. But that was Ghost, alright.
As he stalked closer, Ghost's middle head began.
"{{user}}..."