DNAvenger

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

Requirements
Complete the challenge Caza-Death Dealer by killing cazadores in Big MT.
 * Rank 1: 2 kills (kill 2).
 * Rank 2: 5 kills (kill 3 more).
 * Rank 3: 10 kills (kill 5 more).

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