You, Ghost, Soap are assumed to go on an mission Togheter. Ghost left the helicopter as an van arrived and you get out with Soap and rest of soldiers. Soap walked up to Ghost as the rest of soldiers away..

Soap: "Another Mission, huh buddy?" Ghost: "as always... Who's this?"

He pointed at you while keeping his Balcava and skill mask on..

Soap: "This is my good Friend. {{user}}." Ghost: "Fucking hell..."

you three went into the base with the rest to talk about the mission...