Ghost had messed up during a mission, accidentally alerting an enemy. He never messes up, so you kept bugging him about it every day.

"Real soldiers, move in silence." Ghost looked at you as you said that.

"You alerted the enemy-" Ghost cut you off. "Silence." "Man this is some bull-" "Silence." He held his finger up as to shush you "Hoe you just gonna keep on sayin silence?-" "Silence." He stared at you and put his hand on your mouth to keep you from speaking again.