The Callisto Protocol is ridiculously difficult at times, especially when you’re low on ammo. Her stun baton works well at first, but unless you upgrade it, this melee weapon still takes multiple hits to eliminate enemies. To aid you in your journey, we recommend getting the Skunk Gun, a small cross between a pistol and a shotgun. This optional weapon comes in handy, especially before acquiring more powerful weapons later.
Unfortunately, it’s easy to overlook this weapon, but luckily the game gives you two ways to get your hands on it. Here’s where to find the Skunk Gun The Callisto Protocol.
Where to find the Skunk Gun in Chapter 3: Aftermath
You won’t get the Skunk Gun Schematic until the third chapter, Aftermath, at the earliest. Play until you need to access the Shu and you will eventually find a fuse in front of a gate leading to Workshop 0302. Instead of putting the fuse in the door leading to the Shu, go back the way you came, then climb to the upper level and then back down past the spiked walls.
Wrap around and you’ll pass the D4 Basement Storage sign on the wall, climb onto the platform, and then drop down the other side past the D4 Storage sign. Straight ahead is a control switch that needs a fuse. Insert the fuse into the panel and activate it to open the gate. Go inside, through the opening in the wall, and you’ll find the Skunk Gun Schematic on a table to the right.
Where to find the Skunk Gun in Chapter 4: habitat
A second Skunk Gun scheme is in the fourth chapter titled habitat. Play until you complete the objective that requires you to reach the biodome that is triggered after going down an elevator. You know you’re in the right place when you can see Jupiter in the background. Head into the oxygen processing area after destroying the patrolling robot.
Once in the Oxygen Processing area, you’ll see an upgrade station on the right, a locked door in front of you, and Botanical H624 on the left. Go left into Botanical area H624 and go past the rotating containers with plants. Continue to the end and turn right onto Production hall H626 Area.
Here you’ll see a chest to the left and a narrow path to squeeze through to the right. Go right, squeeze through the path and you’ll be attacked by a small alien. The Skunk Gun Schematic is on a crate in the upper-right corner. Take it back to the upgrade station and buy the weapon for 800 credits.