diamond dog
dd_(metal_gear) d-dog_(metal_gear)
A puppy found and brought to Mother Base by Venom Snake. After returning to Mother Base, Revolver Ocelot tells Snake that he will train the puppy to assist him on the battle field when needed.
It is uncertain what breed DD is, some of the Mother Base Staff question this and notice that he is part wolf, while others deny this and say he is a dog. When DD was a puppy, Mother Base Staff would talk about how cute he is, and some of them even wanted to touch his paw pads.