Save DLC Lost on Mars (Far Cry 5)

Hello, slowly took this Supplement and reached the final mission. Of the remaining items to collect need to collect a couple of notes Larry Parker I decided to get after finishing the story. However, after passing I was not allowed in the open world, and is rolled at the beginning of the last mission not impossible. Please tell me how to extract the saves, or share your preservation, for to place not very desirable. Thanks in advance!
P. s I Really want achivku)