Longest video games marathon playing a First Person Shooter (FPS)

The longest videogame marathon on a First Person Shooter (FPS) lasted 135 hours 15 minutes 10 seconds and was achieved by Okan Kaya (Australia) who played Call of Duty: Black Ops 2 (Treyarch, 2012) at 4Cabling Pty Ltd. in Waterloo, New South Wales, Australia from 13-19 November 2012.