Cyborg (Fallout Supplement)
From D&D Wiki
You’ve made permanent enhancements to your body! The Cyborg feat instantly adds Damage, Poison, and Radiation Resistances, and a bonus to Ranged Weapons.
Prerequisite: Level 12, Constitution 16, 4 ranks in Knowledge(Technology), 4 ranks in Treat Injury, +4 Fortitude
Benefit: 2 DR vs physical attacks, +3 to Fortitude Saves vs. Poison, Decreases Radiation level by one, and a +2 attack bonus when using Energy Weapons.