Best A-TAMS Build for Season 3 – The First Descendant

Welcome to The First Descendant A-TAMS Build (Sniper Rifle). This A-TAMS Build is updated for Season 3 Episode 2. The A-TAMS is a powerful sniper rifle that deals increased damage based on the charge of the gauge. 

Table of Contents:

• A-TAMS Summary
• A-TAMS Build – Single Target Damage
  • Modules
  • Weapon Readjustment
  • Weapon Cores
• A-TAMS Build – Ultimate Luna Optimized
• Lore Info

You can also check out all our Weapon Builds and Character Builds Database if you are looking for more optimized builds. We also have a The First Descendant Character Tier List and a META Weapon Tier List if you wonder what to prioritize first.

TFD Wiki: We have expanded Alcasthq with tfd.alcasthq.com, a Wiki & Database for anything related to The First Descendant. Use the Character Editor or the Weapon Editor to theorycraft and create builds yourself. Browse Descendants, Weapons, Leaderboard Loadouts or use the Compare Tool. There are plenty of other features you can check out, too!

A-TAMS Summary

The A-TAMS is an Ultimate Sniper Rifle. A powerful anti-materiel sniper rifle that condenses the user’s Arche to accelerate bullets

• Name: A-TAMS
• Type: Sniper Rifle
• Bullets: High-Power Rounds
• Tier: Ultimate
• Unique Ability: Electronic Arche Infusion

Unique Ability “Electronic Arche Infusion”

When aiming, continuously consumes MP to infuse Arche and fill the gauge. When firing, deals increased damage based on the charge of the gauge.

Base Weapon Stat Info

Here is the full weapon stat breakdown of the A-TAMS Sniper Rifle in The First Descendant.

A-TAMS Build for The First Descendant

This is a Single-Target DPS setup.

Next, let us take a look at an optimized A-TAMS Build for The First Descendant. The A-TAMS is best optimized to deal as much damage as possible with a single shot.

Here is all the info you need to create a powerful A-TAMS Build:

• Modules
• Weapon Readjustment
• Weapon Cores

Note: High-Level Weapon Cores boost your weapons’ damage numbers into insanity. Make sure to get weapon cores as soon as possible!

A-TAMS Modules

Modules are an important part of every weapon build in The First Descendant. For the A-TAMS sniper rifle, we want to focus on Multi-hit, elemental damage, and increase the explosion radius.

• Elemental Damage: Adjust the elemental modules depending on what enemies you fight (Enemy elemental weakness).

A-TAMS Module Configuration Table

Module Slot	Module Name	Socket Type
1	Rifling Reinforcement	Malachite
2	Action and Reaction	Malachite
3	Fire Enhancement	Almandine
4	Superheated Gunbarrel	Almandine
5	Weak Point Expansion	Malachite
6	Weak Point Sight	Malachite
7	Charge Amplification	Cerulean
8	Better Insight	Almandine
9	Better Concentration	Almandine
10	Edging Shot	Almandine

Weapon Readjustment

You can use the Weapon Readjustment at the Weapon Workbench in Albion. Here are the best Weapon Readjustments for the A-TAMS:

• Firearm ATK
• Elemental Damage (Preferably whatever the enemy is weak to that you are trying to defeat)
• Weak Point Damage
• Firearm Critical Hit Damage

Try to upgrade the Weapon Readjustments to at least purple quality.

Weapon Cores

Weapon Cores juice up your damage quite tremendously. However, especially the later-level Weapon Cores are difficult to get. So start with whatever weapon cores you have available. Weapon Cores drop in the Void Erosion Purge endgame activity.

Higher level Weapon Cores drop in the higher level Void Erosion Purge levels in The First Descendant. However, you can gradually work towards the highest level. I recommend trying to get to level six as soon as possible, since it won’t require clearing many stages and will already increase the power of your weapon tremendously.

Best Weapon Cores for the A-TAMS:

• Elemental Damage (Free Augmentation)
• Firearm Critical Hit Damage (Hit Augmentation)
• Sprint Speed or Grapple Hook (Precision Augmentation)
• Sprint Speed or Grapple Hook (Precision Augmentation)
• Flex (Special Augmentation)

The Elemental Damage and Critical Hit Damage cores are important for the A-TAMS sniper rifle, the others not that much!

A-TAMS optimized for Ultimate Luna with Battlefield Concert Module

This A-TAMS build is optimized for the Ultimate Luna Build with the Battlefield Concert transcendent module. Change the elemental damage to whatever your boss is weak to.

A-TAMS Ultimate Luna Module Configuration Table

Module Slot	Module Name	Socket Type
1	Rifling Reinforcement	Malachite
2	Fire Rate UP	Xantic
3	Charge Amplification	Malachite
4	Toxic Enhancement	Rutile
5	Weak Point Sight	Malachite
6	Action and Reaction	Malachite
7	Poison Priority	Rutile
8	Fixed Shot	Rutile
9	Weak Point Detection+	Malachite
10	Special Sight	Malachite

Lastly, the Readjustments and Cores.

Readjustments:

• Firearm ATK
• Elemental Damage (Preferably whatever the enemy is weak to)
• Weak Point Damage
• Bonus Firearm ATK vs Colossus

Weapon Cores:

• Elemental Damage (Free Augmentation)
• Firearm Critical Hit Damage (Hit Augmentation)
• Sprint Speed or Grapple Hook (Precision Augmentation)
• Sprint Speed or Grapple Hook (Precision Augmentation)
• Flex (Special Augmentation)

A-TAMS Sniper Rifle Lore

The Arche Injection-Type Anti-Materiel Sniper Rifle, A-TAMS, is a weapon that represents the pinnacle of human military technology today, by condensing the user’s Arche to accelerate the bullets. It is both a Descendant exclusive weapon and the symbol of Deslin’s love for humanity.

The Arche-injection bullet acceleration technology was originally only intended to be used in Hailey’s unique weapon, Piercing Spike, which was developed as a one-off.

This is because in addition to being prohibitively expensive to mass produce, the weapon was also developed for Hailey’s Arche and thus very limited in versatility.

But the sight of the Descendants taking to the front lines with their shoddy sniper rifles was enough to irritate Deslin. The cranky craftsman, who is filled with love for humanity, roared his armory into action.

And so began the development of A-TAMS, a more versatile version of Piercing Spike.

Of course, A-TAMS is not a downgraded weapon with reduced price and performance. It’s a weapon that blends top-of-the-line technology and outstanding Arche versatility and causes more losses to Deslio Armory the more it is produced.

However, its production is strangely well funded, almost to the point of being suspicious.

“Money? You mean the thing that comes out when I beat up Silion?” – Deslin

Related Guides for The First Descendant

You can also check out our Ultimate Weapons Database for The First Descendant or the Builds Database for The First Descendant.