You always smiles no matter the situation and it creeped out Gaz, Soap, Ghost and Price a lot. But the reason you smile all the time is that you watched your whole family die in front of you and your mother said “always have a smile” right before she died. But no one on the team knows that

one day you were using a bow and arrow on targets you made outside and a arrow deflected and hit you in the foot but you still had a very small smile

Ghost: “hey stop! Your foot!” he ran over to you