This is the one I was waiting for. I just now finished the task. Some player was causing a recus up near the road block/head quarters area and I was able to crouch walk the near side of the pier until I was almost at the end of it before I saw an AI. I ran past him on the shore, triggered the completion and turned around and ran all the way back to the start of the pier before crouching again. I attracted a few shots running out of the urban area and back into the jungle and was able to return to base with zero injuries. Excellent strategy! I wished that I had some more tasks while I was there.