People who play the popular Xbox 360 multiplayer game Halo 3 know that if they can find all of the Halo 3 terminal locations they unlock the Marathon Man achievement for 40 G. This is where to find each of the Halo 3 terminal locations.The Halo 3 terminals, according to the game’s story, are storage locations for the Forerunners’ plans. The Forerunners maintained a large empire over 100,000 years before the time of the Halo series. Humans contain Forerunner DNA, and therefore can operate the Halo network. These Halo 3 terminal locations are a major plot element in the game.

There are three Halo 3 terminal locations found on the first level called the Ark. The first of these is found as soon as you walk inside. Use the door to the left to get to the first terminal. The second terminal on this level is found inside the structure that allows the tanks across the bridge of light. Look behind the bridge controls. The final terminal on this level is very difficult to spot. After battling a scarab you’ll notice a large structure with a door and a staircase leading to the next room. Find the final terminal underneath the staircase.

Another place to find Halo 3 terminal locations is on the level the covenant where there are three terminals. The first of these terminals, overall terminal four, is accessed via the elevator leading to the tower controls. Jump from elevator platform to the platform directly across from it – the terminal is there. The fifth terminal can be reached by using a Hornet vehicle, heading towards the second tower. When you hear a message that the tower is clear, it means you’re moving in the right direction. The terminal is inside the tower. The last terminal here, #6, is found on a platform in tower three.

There are two additional Halo 3 terminal locations on the final level. The eighth of these was unknown but later discovered by a player. Halo3planet.com is a good source for information about the final two Halo 3 terminal locations.