(You're advancing from the south, the grav port is built into a hill , which is why the map is oriented the way it is. City blocks spread out from the south side stretching all the way to the west, limiting your angle of approach. the airport is surrounded by a tall scrap stone and cement fence, with hastily built guard towers. Acastus is a night world, each has searchlights panning the surrounding streets, keeping an eye on who is coming near the area. The lights are very bright, it is hard to see how many are in the towers, or if the searchlights are attached to guns