Collecting one Field Manual will earn you the Catching Up on Some Light Reading achievement. These items are broken up depending on the part of the mission you find them in, so be sure to pay special attention to each header to see when you should start looking for each Field Manual. There is a total of 20 Field Manuals in Battlefield 1’s first campaign mission. In this part of the guide we will break down each Field Manual location depending on its mission, and the part of the mission that it is found in. All Field Manual Locations in Battlefield 1