Survivalist (Fallout Supplement)
From D&D Wiki
You're a post-apocalyptic John Rambo, a master outdoorsman able to survive in the most harsh hostile environments.
Prerequisite: Endurance 12, Wisdom 12, 8 ranks in Survival, Guide
Benefit: You gain a +2 bonus to Survival skill checks not made to Track.
Special: This feat can be taken up to 3 times.