Obsessed

Obsessed is a Borderlands 2 achievement in Campaign of Carnage DLC where the player must collect 10 pictures which are dropped throughout the DLC.

Strategy
There are multiple ways to achieve Obsessed because the pictures are rare drops throughout the DLC. One could collect them while playing through the campaign or farm for them at Pyro Pete's Bar using the recyclable side mission Bar Room Blitz.
 * 1) Fast travel to The Beatdown and enter Pyro Pete's Bar.
 * 2) Go to the bounty board on the left and accept the mission Bar Room Blitz. Begin mission.
 * 3) Focus on killing the Badass Enforcers who enter through the two most Northern doors and the single door to the East on the 2nd floor.
 * 4) Collect any pictures of Moxxi that drop. Rinse and repeat.