Charging Attack

From the Mountain Expedition Flag, proceed across and grapple to the mountain. Just before the hot air balloon to the next section of the tower, take the left path up and climb up the wall structures at the end of this path. Head left to find the Fading Man. To the right of the Fading Man, grapple across twice. After second grapple, turn left immediately and head through the crawl space. Drop down the wooden ledge to pick up Charging Attack.