There are 5 different ammo types in Marathon, and if you find yourself running empty, you can craft ammo with the CyberAcme Faction in the Armory. Below, we’ll explain all the different ammo types in Marathon, along with the ingredients you’ll need to scavenge in order to craft more of it.
Ammo is essential to survival against UESC and hostile Runners, so we’ll show you the locations of Unstable Gunmetal, Unstable Gel, and Unstable Lead so that you always have the resources you need to craft more ammo when you return from extraction.
How to Craft Health/Shield Items in Marathon
Players can craft Patch Kits and Shield Charges in Marathon with less valuable resources. Here’s what they are and how to get them.
Ammo cannot be crafted from your inventory in the middle of a run. You can only craft from the Armory before you enter a mission.
All Ammo Types & Weapons in Marathon
|
Ammo Type |
Weapons |
|---|---|
|
Light Rounds |
BR33 Volley BRRT SMG CE Tactical Conquest LMG Copperhead RF Longshot M77 Overrun AR Retaliator LMG Stryder M1T |
|
Heavy Rounds |
Bully SMG Demolition HMG Impact HAR Magnum MC Repeater HPR Twin Tap HBR |
|
MIPS |
Hardline PR Misriah 2442 Outland WSTR Combat Shotgun |
|
Volt Battery |
V11 Punch V22 Volt Thrower V66 Lookout V75 Scar |
|
Volt Cell |
Ares RG V00 Zeus RG V85 Circuit Breaker V99 Channel Rifle |
How to Craft Light Rounds in Marathon
Unstable Gunmetal Locations
Unstable Gunmetal is used to craft Light Rounds from the CyberAcme Faction in the Armory. Players can get Unstable Gunmetal in the following POIs across Perimeter and Dire Marsh:
How to Craft Heavy Rounds in Marathon
Unstable Lead Locations
Unstable Lead is used to craft Heavy Rounds from CyberAcme’s Armory. Players can acquire Unstable Lead from these locations in Dire Marsh and Outpost:
How to Craft Volt Batteries in Marathon
Unstable Gel Locations
Unstable Gel is used to craft Volt Batteries from CyberAcme in the Armory. Below, we’ve listed the locations across Dire Marsh and Outpost where you can find Unstable Gel:
While Volt Cells and MIPS Rounds cannot be crafted, they can be purchased for Credits in the CyberAcme Armory.
In need of more guidance when you’re on a dangerous run? Check out our interactive map for Perimeter and our interactive map for Dire Marsh so that you can use GameRant to stay on top of other hostile Runner Shells!
- Released
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March 5, 2026
- ESRB
-
Teen / Animated Blood, Language, Violence, In-Game Purchases, Users Interact
- Multiplayer
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Online Multiplayer, Online Co-Op