That Was Your Own Fault

That Was Your Own Fault is a challenge in Tycho's Ribs worth 10 Badass points. To complete this challenge, the Vault Hunters must allow the enemy-controlled turret near the end of the level (in the Exhaust Port) to hit the shield standing in the way of the level's exit.

Strategy
So long as the Vault Hunters refrain from attacking the Lost Legion soldier controlling the turret during this battle, the challenge is likely to complete on its own. Make sure that the Vault Hunters are positioned somewhere between the shield and the turret, and one of the shots will eventually hit the shield.