n. Destruction of property or obstruction of normal operations, as by civilians or enemy agents in time of war. Treacherous action to defeat or hinder a cause or an endeavor; deliberate...
n. Destruction of property or obstruction of normal operations, as by civilians or enemy agents in time of war. Treacherous action to defeat or hinder a cause or an endeavor; deliberate...
You either keep battleing in your ladder, or you could try doing A or S ranked missions, I'm pretty sure it's one of those missions. It might tell you who you could unlock.