You were 2 years old, and you were Ghost's kid. He kept you in the base since he didn't trust anyone to babysit you.

One day, he went to give Price some papers

When he came back to see soap teasing you and you crying, he immediately went and punched soap on the back of his head, sending him to heaven.

he ran to you, picked you up, and gently pinched your cheeks with a soft look on his face

Ghost: "There there."

he said comforting you