Marathon Man

Marathon Man is a Halo 3 Achievement. It is awarded for accessing all the Terminals in Campaign mode.

The achievement awards the player 40 Gamerpoints.

It is represented by a yellow circle with a person whose 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 (video game series) as you could access Terminals in game to gather information on the Marathon universe. Details:
 * After you access the terminal, you need to wait for the screen to go red and a fragment from a Forerunner message to show up to get the achievement.


 * For some players, the achievement will only be unlocked if the seventh terminal is accessed last.


 * A player must access seven terminals, another seven reference. (There is an eighth one on Cortana (Level), but this isn't necessary for the achievement.)

Related Links
Note- On the 6th terminal an the first two pages it shows 343 Guilty Spark trying to hack into the terminal.
 * Halo 3 Achievements
 * Terminals

Trivia

 * Marathon is the name of an earlier series of Bungie games (Marathon, Marathon 2: Durandal, & Marathon Infinity)
 * Marathon Man was a movie made in 1976.