How do you evac Fortress 2 Aliens vs Predator 2 custom map

In this video we figure out how to evac the map, Fortress 2 by hudson hicks ontario. Fotress2_evac is an evac map in the ultimate map pack 3. With evac matches picking up in popularity recently, King Kenny wanted to know how does one evac Fortress2_Evac. He found himself stranded and surrounded by cloaked and camped up predators. #ultimatemappack3