Fallout 4: Far Harbor – How to Get All the New Legendary and Unique Weapons

December’s Child

This weapon is a Unique combat rifle that is much faster and easier to use than any other combat rifle in the game.It uses 5.56 ammo, has a 25% higher fire rate, and 15% faster reload time. 

This weapon is found during the quest “Best Left Forgotten.” When you find the hidden lab that you’re looking for (we won’t spoil what it is), do what you’re supposed to do and you’ll come across a huge locked door with a computer named KYE 1.1. The computer will open the door for you if you can pass a Speech Check, or you can just bring Nick Valentine and get in instantly (definitely the preferred option). Once you’re in the room, head straight to the large chest at the back and claim your December’s Child sitting on a sink right next to the chest.