The Callisto Protocol

Gun Controls Guide: How to Shoot, Reload, and Quick Shoot

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The guns in The Callisto Protocol are great tools to aid your survival in Black Iron Prison. Read on for a complete guide on how to use guns, including how to shoot, reload, and use the Strategic Targeting System!

How to Shoot and Use Alternate Fire

The Callisto Protocol Aim Down Sights

Input Device Primary Fire Alternate Fire
Controller Press and hold LT/L2 to aim down sights and press RT/R2 to shoot. Press and hold LT/L2 to aim down sights and then press RB/R1 to shoot.
Mouse & Keyboard Click and hold RMB to aim down sights and click LMB to shoot. Click and hold RMB to aim down sights and click MMB to shoot.

While melee combat using the Stun Baton is the staple in fighting the Biophages, guns can help you out in a pinch.

You can use guns to pick off enemies or deal chip damage before they get close to you. This ensures that you will have an easier time taking them down with the Stun Baton.

Upgrade Guns to Unlock Alternate Fire Mode

If you have upgraded a weapon to have an alternate fire mode, it can deal more damage at the cost of using more ammo. Use it wisely.

All Reforge Weapon Upgrades

How to Use the Strategic Targeting System (Quick Shoot)

The Callisto Protocol Quick-Shot Indicator.png

How to Quick Shoot
(Controller)
When the quick-shot indicator appears, Press and hold LT/L2 to quickly aim down sights and then press RT/R2 to do a quick shoot.
How to Quick Shoot
(Mouse & Keyboard)
When the quick-shot indicator appears, Click and hold RMB to quickly aim down sights and then click LMB to do a quick shoot.

The Strategic Targeting System allows you to quick shoot and dish out burst damage while you are engaged in melee combat.

Striking the enemy with the Stun Baton enough times will cause the enemy to stagger and the quick-shot indicator will appear. If you aim down sights during this window, you will automatically lock-on to the enemy allowing you to fire a shot.

This is especially useful when dealing with multiple enemies and you want to quickly thin out their numbers.

How to Reload

How to Reload
(Controller)
Press X/Square to reload if the magazine is not full.
How to Reload
(Keyboard)
Press R to if the magazine is not full.

You can manually reload your gun provided you have the reserve ammo in your inventory.

How to Swap Guns

Press 1 or Left D-Pad to Swap Between Your Primary and Sidearm

To swap between an equipped Primary and Sidearm weapon during combat, simply press 1 on PC or the Left D-Pad on controller. This will allow you to cycle back and forth between your Primary and Sidearm quickly.

However, do note that you can only do this for equipped guns. You will not, for example, be able to swap out your current sidearm for a different one using this method.

Change Equipped Guns via the Inventory Screen

The Callisto Protocol - How to Swap Equipped Weapons

To change your equipped gun, simply head on over to the Inventory Screen, hover over your desired gun, and hold the interact button (E on PC, X/A on controller) to equip it. This works if you want to change your equipped Primary or Sidearm before heading into combat.

Use the Quick Swap Menu to Change Equipped Guns During Combat

If you find yourself running out of ammo and needing to change to a different Primary or Sidearm, you can do so via the Quick Swap Menu.

While in combat or while moving, hit 2 on PC or the Right D-Pad on controller to bring up the menu. Use the scroll wheel or the Up/Down D-Pad buttons to cycle through your arsenal. Once you have a different gun highlighted, hit RMB on PC or X/A on controller to swap to the new gun.

The Callisto Protocol Related Guides

Callisto Protocol - Tips and Tricks

Tips and Tricks:
Beginner's Guide to The Callisto Protocol

All Tips & Tricks

Skins and Cosmetics
List of Skins How to Get the Biophage Skin
How to Get the Retro Prisoner Skin How to Get the Founder's Pack
How to Get the Engineer Skin How to Get Watchtower Skin
How to Get Outer Way Skin -
Game Mechanics & Upgrades
All Reforge Weapon Upgrades Inventory Upgrade Guide
How to Get Armor How to Heal
How to Farm Callisto Credits Ammo Farming Guide
How to Perform a Quick Kill -
Weapons & Combat
Best Upgrades Guide Gun Controls Guide
How to Dodge Melee Attacks How to Block
Best Weapons Guide Perfect Dodge Guide
System / FAQs
Difficulty Settings Guide Best Settings Guide
New Game Plus Guide Season Pass Price and Contents
All Permanent Events and Missable Content List of All Death Animations/Scenes
How to Fix Stuttering and Frame Rate Issues Can You Save the Trapped Worker?
How to Pre-Load How to Fix Low Quality Text
How to Use Photo Mode Is There a Map?
How to Reset Checkpoints Contagion Mode Guide
How to Save: Can You Turn Off Autosave? What are Beta Paths?
All Weapon Schematic Locations Ending Explained
Can You Quick Turn? Can You Skip Cutscenes?
List of Unlockables -

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