These are the weapons of the Marathon franchise.

Fists: Cyborg hands built for killing aliens. Can be dual-wielded.

Magnum Mega Class Pistol: The old reliable pistol. Can be dual-wielded

MA75-B Assault Rifle/Grenade Launcher: A rapid firing rifle with a Grenade Launcher attachment.

Zeus Class Fusion Pistol: An automatic energy pistol, can hold the trigger to launch a powerful overcharged shot.

SPNKR SSM Launcher: A rocket launcher that can fire two missiles before reloading.

TOZT-7 Backpack Napalm: A portable napalm launcher.

WSTE-M5 Combat Shotgun: A powerful, double-barreled shotgun with the ability to be dual-wielded.

KKV-7 10mm SMG Flechette: A fast-firing submachine gun firing flachette knives.

Alien Weapon: A weapon used by Pfhor Enforcers that launches balls of fire.