Gears Of War 3 Infinite Ammo Mutator & Field Engineer Onyx Medal

There is an easy method to get both the Gears Of War 3 infinite ammo mutator and the field engineer Onyx medal. There are a total of 65 onyx medals which go towards the seriously 3.0 achievement. You can use the infinite ammo mutator in both campaign arcade mode and horde mode (which helps tremendously). Infinite ammo gives you unlimited ammo in the lancer, retro lancer, hammerburst, gnasher shotgun, sawed off shotgun, boltok pistol, gorgon pistol, and snub pistol. It does not give you unlimited ammo for any of the power weapons in Gears Of War 3, like the boomshot for example.

In order to get infinite ammo in Gears Of War 3, you need to build/repair/upgrade/refill ammo to fortifications five times in one round, in horde mode 100 times. This obviously can take a long time, but there is an easier way to do this by boosting.

How To Get Infinite Ammo In Gears Of War 3

First off, you will need another player to help you do this. Host a private match on the map "checkout" with difficulty on insane." You might be wondering, "why on insane?" You need to put it on insane so you can die from enemies easier to repeat wave 1, otherwise, it will take too long to get the infinite ammo mutator.

1. Have the other player give you 1000 dollars, you now have 2000 dollars total.
2. Find a command post and buy it, costs 0 dollars.
3. Build a turret nearby and have the other player shoot it repeatably.
4. Keep refilling ammo to the turret until wave 1 of Gears Of War 3 horde mode starts.
5. Run out and get killed by the enemies as soon as the wave begins, then restart the wave.
6. Repeat Steps 1-5 until you unlock infinite ammo mutator.

Note that you can also get the Gears Of War 3 field Engineer onyx medal at the same time. Building or editing any fortifications such as barriers, turrets etc. counts toward it. You need to build/edit fortifications 1000 times to get the field engineer onyx medal, but every time you reload the turret it counts.

Infinite ammo will help you if you intend to complete Gears of War 3 on insane. Or complete Gears Of War 3 horde mode on insane.

Hope this helps, any questions, feel free to ask me below in the comments section. This is not a glitch in Gears Of War 3, it's just a way to get infinite ammo and an onyx medal faster.