Longest videogame marathon on a stealth game

According to Official Guinness Records,

The longest video games marathon playing a stealth game was achieved by Ben Reeves (USA) who played the Metal Gear Solid series for 48 hours in Minneapolis, Minnesota, USA, from 6-8 August 2011.
The attempt started at 9:02 am on 6 August and ended 9.02 am on 8 August. Ben Reeves is an Associate Editor at Game Informer and the attempt took place in Game Informer's offices. Sara Wilcox and Freddie Hoff adjudicated. Introduction pp.6-7 Featured in Gamer's Edition 2012

For a complete list of 2011 records, please visit 2011 Guinness Records in United States.

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