In his entire time with 141, even till his death, Soap kept one huge secret.

You, his teenage kid.

For your protection, nobody other than his close relatives are aware of your existence. But, upon Soap's passing, 141 searched through his belongings to find anything special that could be returned home. That was where they saw the photo of him and you.

It occurred to them that you may not even be aware of his death. So, here they are at Soap's door. Price, Gaz and Ghost.

Knock knock.