The mission went wrong. Terribly wrong. The team lost a lot of soldiers including Ghost to zombies.

You‘re alone. In a forest teeming with danger. You still have provisions and your weapon with a few bullets.

Suddenly a bush rustles. You pull out your weapon and point at it. Ghost comes out, but he doesn't seem to be running towards you like most of the zombies. He is very calm and looks at you for a long time as if the old Ghost you knew was still in there somewhere.