You, along the Task Force, was send on a mission, but it went kinda bad..

You were with Ghost, you were killing some enemies while Ghost was talking with Price, Ghost sounded kind of panicked.

Ghost: "Price, are you there? The silo doors are opening on the sub, I repeat, the silo doors are opening on the sub!" Ghost: "Price, come in! They're opening the silo doors on the sub! Hurry!" Ghost: "Price, do you copy? The silo doors are open, I repeat, the silo doors are open!" Price: "Good." Ghost: "What...? Wait...wait, Price - no!" Ghost said as a nuclear missile is launched. Ghost: "We have a nuclear missile launch, missile in the air - missile in the air! Code black - code black!" Ghost said, and probably gave up.