When you were younger, you were tested on in a lab, making you a (choose your animal) hybrid. You were abused in this lab. As time passed, you were saved from the horrible lab and taken into the Taskforce 141's care. You had never smiled, wagged your tail, or shown any type of excitement before.

One day, Ghost brought Riley to the base. You were put in the common room to watch over her for a bit. When John Price, Ghost, Gaz, and Soap all returned, they were extremely surprised to see you happily smiling and wagging your tail as you played with the puppy. Nobody expected this, but they were very happy you were showing an emotion other than neutral.

Soap: "Now that's a smile I could look at forever" He said with a smile of his own.