Soldier

Open Fire

• Bullets are used in 2 volleys when necessary. 4 bullets become 2 double attacks instead of a triple attack and a single attack, while 5 bullets result in a double attack followed by a triple attack.
• Assassin buffs are consumed by the first volley.

Bullets

Main article: Bullets

Gunslinger and Soldier load Bullets into their main weapons to augment their abilities. A bullet's damage and effects (if any) depends on what you have crafted and loaded. Each gun has its own number of bullet slots and restrictions on bullet types.

Bullets are crafted, loaded, and unloaded through the Bullet menu, which can be accessed three ways:

1. Through the top-left corner of the Party screen (if your class is set to Gunslinger/Soldier, and displays your main weapon's menu).
2. Through the bottom-left corner on MC's portrait on the Classes screen (if your class is set to Gunslinger/Soldier, and displays your main weapon's menu).
3. By selecting the desired gun on the Inventory screen. (Works regardless of your current class.)

Bullets can be unloaded and added to a different gun. Multiple copies of the same gun will have the same loadout. If a gun's upgrade will cause it to change names (for example, Ten-Wolf Gun to Ten-Wolf Gun Sterling), the bullets will not carry over—make sure to unload it before making the upgrade.

In Battle:

• Every hit in a normal attack uses one bullet, in the same sequence they are loaded in. You can only attack as many times as you have bullets remaining.
  • If a slot does not have a bullet loaded, that slot will use a standard 50 ATK bullet during battle.
• Once you run out of bullets, you will have to reload on the next turn (or through  John Doe Defender of the Peace Massive Dark damage to a foe.
  Gain Charge Bar +30%Instantly boosts Charge Bar by 30%
  Strength: 30%.
  Reload bullets.'s C.A. effect).
• If the targeted enemy is defeated during a multiattack, the next enemy in that wave will be targeted by remaining attacks.
• Charge attacks don't consume bullets and can be performed even without them.

Crafting Bullets

See these Google Spreadsheets for crafting material details:
Bullets before Soldier's implementation: https://docs.google.com/spreadsheets/d/1be94_B6KpWWv03M0i8rPRg_1Hf6movQ6rReE7AONDv0/edit#gid=1011556769
Bullets after Soldier's implementation: https://docs.google.com/spreadsheets/d/1kiEdxiO_Uy-y0dvHAKl9MMFj3PNegyxMrIkC6lQ9W54/edit?usp=sharing

Notable Main Weapons

John Doe, the Class Champion Weapon, is in almost all circumstances the main weapon used with this class. Its ability to reload bullets on Charge Attack is invaluable for the class' playstyle, and any other weapon will require you to waste either a skill slot or a turn for reloading.

John Doe Emblems:

• Gunslinger's Humanity - Dodging a lethal attack can be useful, but the effect can be acquired elsewhere, such as from Titan calls.
• Gunslinger's Divinity - The absolute standout option, providing 760K damage every turn as long as you can avoid being hit, and that's before any Supplemental Damage or skill cap up is considered. Users may have trouble with bosses that have high multi-attack rates and/or all-ally attacks. For best results, bring some method of redirecting attacks away from the MC.
• Gunslinger's Devilry - Bonus damage can be strong, but requires manual reloading or charge bar acceleration from another source to gain the full effect of the buff. Bonus damage can also be relatively easily acquired from other sources such as summon calls or character abilities.

For another weapon to even begin to be considered, it must pass all the following tests:

• Can I afford losing a turn to reloading, and/or a skill slot to  Lock 'n' LoadDiscard remaining bullets and reload.? Is the charge attack effect on the new gun powerful enough to compensate?
• Is it really worth losing the enormous damage from the Divinity Emblem? Can something else about this new gun replace it, like a high damage modifier or special weapon skill?
• Does the gun have six bullet slots, and a bullet layout worth investing materials in?

Very few guns in the game even come close to meeting these standards. Guns below may be worth considering in some circumstances (especially if you do not have a John Doe in that element currently and do not have the resources to build one), but always remember John Doe is the best choice for almost all situations.

• Flamma Orbis - Has a similar effect to the Divinity emblem, with the same trigger effect of not being hit that turn. Deals 600K damage in one go instead of Divinity's split 720K damage, so does not work as well with Supplemental Damage. Has a 23.0% boost to ATK for the whole team vs John Doe's MC-only 20%. The Mirror ImageNext one-to-one attack received will be ineffective
  (Effect removed on next all-foe all-ally attack)
  on charge attack helps protect the team and ensure the end-of-turn nuke goes off in fights where John Doe may have trouble reliably activating it. Bullet layout is focused almost entirely on quickly ramping up Elemental Attack, and your only real debuff capability comes from Full Metal Jackets and Exploders. The boost to skill damage specs for the whole team is also worth considering if you have a skill-damage heavy team composition.
• Arachne ⚠️⚠️This weapon is acquired from the Premium Draw. It will require the use of duplicate copies or Damascus Ingots to uncap to its full potential. It may be difficult to get this weapon in the first place, and will be expensive to bring to its full power. Consider whether you can use a farmable replacement instead. - The "Femme Fatale" skill gives a chance to stack Def Down on every attack, effectively acting like an extra Full Metal Jacket bullet effect for every bullet slot. Loses significant damage in comparison to John Doe with the Divinity Emblem due to no replacement for the nuke and only a passable attack modifier. DrainDamage dealt is partially absorbed to HP
  and DelayReduce a foe's charge diamonds by 1
  on charge attack will be helpful against some enemies. Only gains its full strength at 4 stars, and is not worth spending Damascus Ingots on. Consider use if you happen to have acquired 4 copies and need an alternate dark gun.
• Galleon's Jaw - Has exactly the same bullet layout as a John Doe, as well as the same charge bar boost on charge attack. Loses personal damage due to no Divinity Emblem equivalent, but adds significantly to team damage by boosting charge attack damage by 25% for the whole team, as well as supplementing charge attack damage by up to 400K for each team member. Also applies an effect similar to Gold Bullets, but to the entire team after each charge attack instead of how Gold Bullets apply it to just the MC. A decent option if you have a charge-attack focused Earth team with methods of accelerating the team's Charge Bar.

Other guns can be viewed sorted by bullet count and arrangement at Bullets#Gun List but are not recommended.