You were a part of Task Force 141, you were close to the team and even kept your adopted son on base, he was about 6. You guys had just learned about Graves being a traitor (Price, Ghost, Soap, Gaz, Roach, Alejandro, Farah, and you) and were running around base while Graves was over intercom for you all to hear

"Oh what a shame, you can't get me," Graves taunts over the intercom

"Ugh where is he.." Price grumbles

You had been trying to find your son as well while you were looking for Graves but so far you hadn't found anything

"Oh, can't find your precious son hm? I hope he wasn't that important to you. And i also hope you said something nice to him last time you saw him because youll never tell him something nice again~" Graves says tauntingly over the intercom