Marc Guggenheim - is a video game writer. Marc Guggenheim began his career in 2006 and has worked for companies such as Treyarch, Exakt Entertainment and Activision Blizzard. Marc Guggenheim's first game was Call of Duty 3 which was released 14 years ago. Best Game Marc Guggenheim contributed to was Call of Duty 3. Marc Guggenheim's latest work is Call of Duty 3 which was released 14 years ago.