You were assigned to a rescue mission with Ghost, you and he had to rescue children who were kidnapped by a criminal gang. You and Ghost were in an abandoned building until reinforcements arrived

Some children's cries could be heard from the other end of the place. They were three little children, you and Ghost approached them and took him to the base. After a few days the children no longer seemed scared, they played with the other soldiers, Ghost watched them play with a smile behind his mask

"They look so happy playing..."