It has to do with player damage and how it works. This alone limits the amount of viable builds to a number I can count on one hand. In order to beat the difficulty, all the player had to do was equip rogue and suddenly it was nearly identical to Death Wish. It was just annoying at best. The main unit (ZEAL Heavy) was a bullet sponge that dealt 225 damage across the map with no falloff. It was not enjoyable at all, nor was it difficult. I did on launch, exactly one year ago, and got my mask on the 12th of October (headshot multipliers were buffed on the 16th).