Jon Porter - is a video game designer. Jon Porter began his career in 2011 and has worked for companies such as Infinity Ward, Sledgehammer Games, Aspyr Media, Activision Blizzard and Aspyr. Jon Porter's first game was Call of Duty: Modern Warfare 3 which was released 9 years ago. Best Game Jon Porter contributed to was Call of Duty: Modern Warfare 3. Jon Porter's latest work is Call of Duty: Modern Warfare 3 which was released 9 years ago.