Scorched killer's receiver

The Scorched killer's receiver is a weapon mod in Fallout 76 for the 10mm pistol, the 10mm submachine gun, the assault rifle, the combat rifle, the combat shotgun, the double-barrel shotgun, the handmade rifle, the hunting rifle, the lever action rifle, the pipe gun, the pump action shotgun and the submachine gun.

Background
The Scorched killer's receiver was originally theorized by Hank Madigan upon an expedition to the AMS Corporate Headquarters in Watoga while he was a part of the Fire Breathers. Madigan discovered scientific research that detailed the property of depleted ultracite reacting with regular ultracite to produce a corrosive substance. Madigan then hypothesized that this property of ultracite could be utilized in a weapon that fired depleted ultracite bullets to combat the Scorched.

This receiver was then designed for twelve different weapons, the schematics of which were logged into a terminal that required passwords from Fire Breathers sergeants Allemane, Cominsky and Holstein. In addition, 10mm pistols were modified with this receiver and served as training weapons for Fire Breathers exploring the Belching Betty mine.

Effects
When applied to compatible weapons, the Scorched Killer's receiver mod will cause damage dealt with attached weapons to have a damage increase of 50% against the Scorched, while dealing 20% less damage to everything else. Weapons with the applied mod will then fire bullets with a blue muzzle flash, to denote the presence of the weapon mod.

Crafting
Weapon modifications will modify an existing weapon, and any modifications previously equipped on the weapon will be destroyed, not unequipped. Loose mods cannot be crafted. For modifications unlocked through scrapping, the corresponding weapon must be scrapped in order to learn how to craft it.


 * 10mm pistol


 * 10mm submachine gun


 * Assault rifle


 * Combat rifle


 * Combat shotgun


 * Double-barrel shotgun


 * Handmade rifle


 * Hunting rifle


 * Lever action rifle


 * Pipe gun


 * Pump action shotgun


 * Submachine gun

Locations

 * Crafted at a weapons workbench after acquiring the plans via the Fire Breathers master terminal during the Search Big Bend Tunnel for Survivors quest.
 * The 10mm pistol, 10mm submachine gun and assault rifle plans are unlocked freely from the terminal regardless of quest completion.
 * The handmade rifle, pipe gun and submachine gun plans are unlocked upon obtaining Allemane's code from her body at the Big Bend Tunnel West entrance.
 * The double-barrel shotgun, pump action shotgun and combat shotgun plans are unlocked upon obtaining Cominsky's code from her body inside the Big Bend Tunnel.
 * The combat rifle, hunting rifle and lever action rifle plans are unlocked upon obtaining Holstein's code from her body at the Big Bend Tunnel East entrance.
 * The individual weapon mods are sold by Vendor Bot Mack in the Charleston Fire Department.

Bugs

 * When applied to the hunting rifle, the mod causes the bullet to simply not fire, and no muzzle flash, bullet hole or damage against a target is produced, despite a round being consumed and the rechamber animation playing, see here.
 * The required code may not register as being in the player's inventory, thus giving them the access denied screen, unable to learn the modifications.
 * This can be fixed by dropping the code in question from the inventory and picking it up again while standing near the master terminal.