Overrun AR

The Overrun AR is a full-auto assault rifle chambered in Light Rounds and built around one defining trait: an exceptionally high rate of fire. At 720 RPM, it unleashes rounds faster than any other assault rifle in Marathon, rewarding aggressive, close-to-mid range play where sustained pressure matters more than measured precision. With a firepower rating of 11.5 per shot, the Overrun AR trades individual bullet damage for raw volume, keeping opponents constantly suppressed while the 20-round magazine empties in a hurry. Its 1.2x zoom and 27-meter effective range make it a natural fit for corridor fights, indoor objectives, and any scenario where the enemy is already in your face.

Against unshielded targets, the Overrun AR achieves a time-to-kill of roughly one second, making it a reliable option for finishing wounded runners or quickly dispatching lighter enemies. The weapon's recoil rating of 100 means sustained fire will drift without careful management, so keeping engagements short and burst-firing at medium range will help maintain accuracy. The Precision Barrel and Far Reach Optic mods can extend its effective envelope, while the Sturdy Brace Grip helps tame recoil for longer fights. Common rarity means the Overrun AR is easy to find during raids, making it a dependable backup or starter weapon for runners of any class. Its light ammo type pairs well with other light-round primaries, though mixing ammo categories with a heavy-round secondary will keep you topped up across more situations.