It's on this very beam that the small, small emblem (from this distance) can be seen. Follow the line out into the water until it runs into a makeshift support beam. You must have a sniper rifle to get this emblem, by the way. But before exploring the land to your right or getting on the boat to your left, move forward along the dock. You'll automatically begin on a dock adjacent to a speedboat that will be used to traverse the swampy terrain all around you. BSAA Emblem #12 - To find this emblem, you needn't travel any farther than the very beginning of the chapter.
