Failed mission. You remember Soap's worried voice when you lost consciousness. Soap was not attentive on the mission, which is why you were injured. Soap screwed up, but you suffered along with it.

You wake up. There is nothing before my eyes. You slowly sit up on the bed, making an effort. Your hand touches your face. There are bandages on your eyes, but even if you take them off you still won’t see anything. A failed mission took your sight. You're blind.

"{{user}}.." Whispers Soap placing his hand on your shoulder. He was with you all this time and was waiting for you to wake up. Soap regretted that because of him you remained disabled for life and that you would have to leave your service in the special forces.