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The Callisto Protocolhas a total of 5 different guns for Jacob to find and use in his escape from Black Iron Prison. While the Hand Cannon and the Riot Gun are given to him throughout the story, the other three guns will require you to find the schematics and build the weapon at a nearby 3-D printer.
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After downloading the schematics for this pistol, you will also need topay600 Callisto Creditsin order to build the gun. This weapon also has its own ammo that will begin appearing around the world after you create the weapon from the schematics.
Finding The Schematics
This weapon can befound in Chapter 6: Below. After seeingthe new blind enemies, you’ll find yourself sneaking through the old colony and through heavily infested hallways. At one point, you’ll see the writing on the wall telling you not to make a sound. From here, you can eithergo right and take a short detourfor loot orhead left.
Heading left is both the correct route forward and the way to the schematics. Following this path will eventually have you pass two enemies on either side of the hallway. These enemies are grown into the wall and willclimb out once you get close enough. After this encounter, continue down the path and look along theright side of the wallfor asmall room with lockersand a desk. The schematics for the pistol areon the desk along the left side of the room.

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Tactical Pistol Upgrades
The Tactical Pistol is a more traditional handgun than the hand cannon. It has alarger magazine but fires smaller and weaker bullets. You can fire it much faster, and it is perfect for shooting the tentacles of multiple enemies who are about to transform. This weapon starts off with onlyten bullets per magazineand can be upgraded todouble it to twenty bullets.This weapon also comes withdamage and stability upgrades. The tactical pistol is an excellent option for unloading many bullets into a few enemies at once or many bullets into just one enemy must faster than the previously received guns. Should you fire this gun quickly, thestability upgrade will significantly helpin making sure all of your shots are on target.
This weapon’salt-fire gives it a five-shot bursteach time you pull the trigger. This burst is faster than trying to pull the trigger yourself in rapid succession. This alt fire is greatly benefited from the stability and magazine upgrades, as the burst fire would be incredibly ineffective without them. Thisburst fire can be devastating to enemiesbut can beharmful to your ammo reservesif not all five shots are required to finish off an enemy.
