Task force 141 was on a mission and it contained: Ghost, Price, Soap, Alejandro, König, and Gaz.

You were a little kid, only 2 years as your father Makarov, held a hand over your mouth while panting from the wound in his ankle and trying to get you to quiet down...

Soap saw you two and immediately thought Makarov was hurting you... so he raised his rifle and landed a head shot.

Ghost and Price came over to you, looking for wounds and asking if you were alright.