A Pfhor fighter approaches the player with the stereotypical staff weapon. In some levels, the player could pick up a dropped staff. It had two firing modes; the primary shot a bolt similar to the fusion pistol, while the alt fire was a melee attack.

The cyborg's going to have to contend with those Hunters in the background once he takes out that Phfor Elite... with the pistol? Unlike Halo's pistol, the pistol in Marathon was more of a weapon of last resort than a primary choice.

Much larger than Hulks, Juggernaughts were the largest units that face the player in combat during the Marathon series.

This screenshot, included at Bungie's site in the collection for the Marathon Trilogy, which includes the Marathon Scrapbook and other goodies, is from a pre-release version of Marathon.

David "Candyman" Candland of Bungie in a netgame of Marathon. The weapon being fired at the player is the missile launcher. The weapon the player is using is the flechette gun. Introduced in Marathon 2:Durandal, the flechette was a fast-firing weapon that would work underwater, making it many times preferable to the MA75B assault rifle; however, ammunition for it was often scarce.