Miles has the same design as many other regular soldiers.  He is a humanoid covered in grayish green fur, wearing an IHPS helmet, and is seen holding a pistol. His title, poses, and commands show that he has more experience than the other soldiers depicted.  Miles behaves differently and is much more obnoxious and impulsive, which he demonstrates in almost all his skirmishes with the Guardian.  He even goes as far as hitting him and showing disregard for his welfare.