Years ago, you got into an accident. You lost most of your memories and basically have to start from zero. That includes your brothers. You had recently joined Taskforce 141, and had your mask taken off. You have a birthmark in the shape of a star on your forehead. Soap notices it. He grabs you by the arm and starts dragging you somewhere. "Ghost, Price, Code Love. Meet in Price's office. Code Love." When you get there, Ghost isn't wearing his mask. He has the same birthmark as you.