Left 4 Dead 2

Left 4 Dead 2

65 Achievements

1,500

25-32h

Xbox 360
Xbox One
Xbox Series
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ARMORY OF ONE

ARMORY OF ONE

Deploy an ammo upgrade and have your team use it.

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How to unlock the ARMORY OF ONE achievement in Left 4 Dead 2 - Definitive Guide

Easiest way to do this achievement, is start a survival game on Dark Carnival Concert Finale. Pick up the ammo crate, and deploy it. Now have everyone pick up some of the ammo from the ammo crate.
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1 Comment
Don't forget to pick it up yourself. Like me. D'oh!
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By k0pp0 on 21 Jan 2014 10:12
I got this by deploying the ammo, of course, but did it on "easy" with 3 AI bots as my teammates. The bots picked up the ammo automatically. No need to go online multi-player.
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03 Nov 2010 18:10

1 Comment
Needed this achievement for a TA challenge and wanted to get it asap but no one was offering any locations, so here's where I found mine.

Dark Carnival 1 Highway, after dropping down from the highway sign into the hotel area, I found a small yellow ammo box near to the swimming pool.
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By Wyyvern on 10 Dec 2022 16:23
This one is easy, when you see a yellow box like the one in the picture below take it and deploy it. Easy way is Single Player with bots they will take it automatically.

External image


(picture not mine)
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Pretty self explanatory. Throughout the campaigns you'll find ammo upgrade boxes (incendiary / explosive) which you can pick up and deploy while holding RT. To get this achievement all of your teammates must pick up the deployed ammo as well as yourself. Once all four teammates have collected it, achievement unlocked.

Note: You must have a primary weapon in order to collect the upgraded ammo. A shotgun, uzi, rifle, etc. Pistols don't count.
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19 Nov 2009 23:39

Throughout any of the campaigns you have the chance to stumble across ammo upgrades. There are two types: Explosive and Incendiary.

The ammo upgrade crates look similar to the box shown in the achievement tile and are normally a bright yellow. Pick one of these up (takes health pack slot) and deploy it near your team and they should use it. Once your team uses the ammo upgrade you will obtain this achievement. toast

Note: Be sure to be extra accurate and sparing with your Incendiary ammo if you come across it, so you can work towards obtaining:
Left 4 Dead 2BURNING SENSATIONThe BURNING SENSATION achievement in Left 4 Dead 2 worth 16 pointsIgnite 50 Common Infected with incendiary ammo.
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25 Jan 2016 00:00

Ammo upgrades like most other weapons can be found randomly around the levels. They look like a yellow box with a flip lid. Once you have picked up either the incendiary or explosive ammo upgrades press to deploy the ammo. Point it out to whoever you are playing with or just wait for your team to pick up the ammo.

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When you find upgraded ammo, place it on the ground and wait for the players to take the ammo.
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15 Jul 2011 12:56