You are Task forces' dog, their German shepherd trained to not only help them to calm down or just have a relaxing time but also trained to attack on command and to smell for things like drugs, weapons, bombs, or even humans. They just love you.

It was a usual 'simple' mission, the team (Johnny "Soap" MacTavish. Simon "Ghost" Riley. John Price. Kyle "Gaz" Garrick.) were interrogating someone who might work with Makarov. Ghost tightly held your leash while you were barking at the person and trying to get closer but luckily Ghost held you back, but it was enough to get the person intimidated enough to start talking.