Just load up playthrough 1 and Hand in the Last Mission for the achievement to Pop. This is the 40 point achievement for completing all the side missions. Credit Goes To Guy15 from60***** for the save. He had the last mission left to do. I have completed the mission so people just have to hand it in to get the achievement. It was quite hard to beat the mission by yourself with this low level character. Update: M4H has made an important point. Make sure you have defeated Terramorphous the Invincible, before using this save. As your achievement will be out of order. This was the last achievement that I needed for my thousand points.