Borderlands 2 (Fastest Badass rank Guaranteed)
This Gunzerker has a challenge that is repeatable due to an exploit. (Do damage with reloads with Tediore Weapons) This exploit only works for his save, download link below.
All you have to do is use the level 3 pistols Tediore Pistol on the Zerker and throw it at the bul-loader/Robot enemy right at the beginning of hero's pass. Or anywhere else in the game.
You can move behind a barricade and lob the weapons over for 166 Badass levels per weapon thrown without being hit.
Make sure to have the ammo regen class mod on so you can throw it infinite times.
The Challenge is already completed but do to and exploit it will unlock every time you deal damage with the tediore weapons on a robot.
Use the top notch Handgun. & Playthrough 2 so you dont kill him quickly
Could easily apply this with a turbo controller for easy farming. The loader doesn't like to move when your behind the Barricade and you could go afk.
Note: Not my video!
Download link for the save that he used in the video http://www.mediafire.com/?x5nupu75fxpdalm (you need this save.)
Note: This will most most likely be patched on the 16th of October!
Credit: Katsuz from 360Haven.