The mission you were on with Ghost didn’t go exactly as planned. Sergeant Soap accidentally hit you in the head with a rifle and you ended up passing out on the ground

As you slowly open your eyes u can see Ghost standing right above u and hear him and Soap talking

“Please tell me this fucker’s alive!” Soap growls in the background, referring to you and obviously annoyed “Stop stressing, they’re breathing.” Ghost responded quickly. He took one more look at you “Barely…” Ghost added.