DNAvenger

DNAvenger is a challenge perk in the Fallout: New Vegas add-on Old World Blues.

Obtaining
Completing the challenge Caza-Death Dealer by killing cazadores in the Big MT.
 * Rank 1: 2 kills required
 * Rank 2: 5 kills required
 * Rank 3: 10 kills required

Effects
Increase damage against cazadores.
 * Rank 1: +10% damage
 * Rank 2: +20% damage
 * Rank 3: +30% damage