Robert Gaines - is a video game artist. Robert Gaines began his career in 2007 and has worked for companies such as Infinity Ward, Raven Software, Treyarch, n-Space, Activision Blizzard, Activison, Aspyr, Square Enix, Active, Activision and Beenox. Robert Gaines's first game was Call of Duty 4: Modern Warfare which was released 13 years ago. Best Game Robert Gaines contributed to was Call of Duty 4: Modern Warfare. Robert Gaines's latest work is Call of Duty which was released 2 years ago.