the first thing you have to do is grind the game until you reach World Tier 4. Next up, raise an hostile Control Point up to Alert Level 3. You do this by completing activities connected to the Control Points with red lines, such as disrupting propaganda, disrupting public executions to save hostages, territory control, and the like. It can be any Control Point that you raise the Alert Level of, it just has to be hostile. Just keep in mind that you need World Tier 4 before you can do this.