The balloon requires to be fueled before using. When you visit it, the quick travel point becomes active. After driving into a new terrain, the location of the outpost is added to the map. Excluding the first location (Chumbucket's Territory), each newly visited region has one Vantage outpost. Tyrant's Lash (12x Scrap, 4x Insignia, 1x History relic) - a camp claimed during Pink Eye's side mission - In Due Time. Vantage outpost - to lower the bridge, throw the Thunderstick at the explosive barrels on the other side. Those places are used for uncovering the map and as a quick travel point. 2x Scrap and a single opponent - that's all you will find in this outpost.