Marathon Man
Marathon Man is a Halo 3 Achievement. It is awarded for accessing all the Terminals in Campaign.
It is represented by a yellow circle with a person who's head has a Marathon symbol on it, and with seven yellow stars (representing the seven Terminals) above him.
It is similar to the Marathon: Durandal achievement, Hats off to 819.
The award itself is a reference to Marathon as you could access Terminals in game to gather information on the Marathon universe.
The achievement awards the player 40 Gamerpoints.
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