Crusader of Atom

Crusader of Atom is a perk in the Fallout 4 add-on Far Harbor.

Obtaining
This perk is given as possible reward for the quest Cleansing the Land by destroying Far Harbor on behalf of the Children Of Atom, as well as the armor Atom's Bulwark.

Effects
Provides a bonus to your weapon's damage. The higher your rads, the higher the bonus (an extra 10% damage per every 100 rads).