Weapon Upgrade Guide

Scattered at irregular intervals in The Callisto Protocol are seven different types of weapons, and it is essential that you acquire them as quickly as possible as they will help you to stay alive. The weapons that are not given to you by allies (Stun Baton and BI-55 Pistol) will need to be found as schematics which you will then have to purchase with Callisto Credits. These schematics will appear more than once if you miss them the first time. Take a look at our Weapon Upgrade Guide to find out how much everything costs.

Stun Baton

Your only melee option and you will be using it a lot. The Stun Baton replaces the temporary pickaxe weapon you begin with when you head to the armory to look for weapons. It basically works the same as the pickaxe but lets you upgrade abilities at a Reforge.

Tier One

Riot Control Swing – 300 Callisto Credits

Blocking Counter Attack – 300 Callisto Credits

Increased Velocity Allow Sheath – 300 Callisto Credits

Tier Two

Damage Upgrade Level One - 900 Callisto Credits

Blocking Protection - 900 Callisto Credits

Block Break - 900 Callisto Credits

Tier Three

Damage Upgrade Level Two - 2,700 Callisto Credits

Blocking Feedback Damage - 2,700 Callisto Credits

Targeting Module Upgrade - 2,700 Callisto Credits

BI-55 Pistol 'Hand Cannon'

Your go to weapon, it has good power and range. The Magnum Rounds Damage Upgrade and the High Capacity Magazine give it some kick and up to 10 shots before reloading, making it a gun you'll be using right to the end.

Tier One

Stability Upgrade - 200 Callisto Credits

High Capacity Magazine Upgrade - 200 Callisto Credits

Tier Two

Magnum Rounds Damage Upgrade - 600 Callisto Credits

Tier Three

TK23 'Boom Bullets' - 1,800 Callisto Credits

GRP Glove

The GRP can be found as part of the mission to reach the back entrance of the Medical area. You can use it to pick up and throw things like explosive canisters, as well as enemies.

Tier One

GRP Recharge Speed Upgrade Small - 300 Callisto Credits

Energy Upgrade Small - 300 Callisto Credits

GRP Velocity Upgrade Small - 300 Callisto Credits

Tier Two

GRP Recharge Speed Upgrade Medium - 900 Callisto Credits

Energy Upgrade Medium - 900 Callisto Credits

GRP Velocity Upgrade Medium - 900 Callisto Credits

Tier Three

GRP Recharge Speed Upgrade Max - 2,700 Callisto Credits

Energy Upgrade Max - 2,700 Callisto Credits

GRP Velocity Upgrade Max - 2,700 Callisto Credits

TK4 Riot Shotgun

This weapon is basically a pump action shotgun that you receive as part of the story. It has better range and less damage compared to the Skunk Gun and will be your go-to damage dealer in most situations.

Tier One

Magnum Rounds Damage - 300 Callisto Credits

Stability Upgrade - 300 Callisto Credits

Tier Two

High Capacity Magazine Upgrade - 900 Callisto Credits

Tier Three

Explosive Round Upgrade - 2,700 Callisto Credits

Skunkworks Shotgun

The Skunk is a shotgun pistol that's extremely good at short range. The downside to this weapon is its low magazine size and need to reload.

Tier One

Magnum Rounds Damage - 300 Callisto Credits

Tier Two

Stability Upgrade - 1,200 Callisto Credits

Magnum Rounds Damage Upgrade - 1,200 Callisto Credits

Tier Three

Swarming Rounds Upgrade - 2,700 Callisto Credits

UJC Special OPS 'Tactical Pistol'

The Tactical Pistol can be acquired in chapter six, it can be found in the underground area you fall into where you wake up hanging upside down. Keep moving through this area until you reach a corridor-like room with spiked walls all along one side and several blind enemies wandering around. Once you get to the other side and through the door there you will find the Tactical Pistol on a desk on the right-hand side. To maximize the potential of this weapon it is recommended that you get the Magnum Round Damage Upgrade and High Capacity Magazine Upgrade.

Tier One

Magnum Rounds Damage Upgrade - 300 Callisto Credits

Tier Two

High Capacity Magazine Upgrade - 900 Callisto Credits

Stability Upgrade - 900 Callisto Credits

Tier Three

TK33 'Burst Mode' - 3,600 Callisto Credits

UJC Special OPS Assault Rifle

The Assault Rifle Schematic can be found in the Colony level when you reach the miners' settlement. Locate the building with the General Store sign, and head through and out the other side - on the left you'll see a bathroom with a flickering light, the Schematic is in front of the mirrors. The assault rifle has plenty of recoil on its three round burst, so it is recommended that you get the Stability Upgrade in order to get the best out of it.

Tier One

High Capacity Magazine Upgrade - 500 Callisto Credits

Tier Two

Magnum Rounds Damage Upgrade - 1,500 Callisto Credits

Tier Three

Stability Upgrade - 4,500 Callisto Credits

TK63 'Homing Rounds' - 4,500 Callisto Credits

Ammo

Hand Cannon

- 120 Callisto Credits

Skunk Gun

- 70 Callisto Credits

Riot Gun

- 140 Callisto Credits

Tactical Pistol

- 150 Callisto Credits

Assault Rifle

- 140 Callisto Credits

Health

Healing Syringe

- 500 Callisto Credits

Take a look at our Beginner Tips and Tricks to get help in the game.