King's Castle has been besieged by the army that wants to invade their only unconquered territory. Protect the castle from relentless enemy attacks with your sharp shooting skills.
Prepare for the battle to protect your base and complete your Lone Ops by taking down enemy troops. Upgrade your artillery and special attacks as needed.
The base has spotted an illegal trading business on the airport and they have sent you alone to the location to eliminate them. You have to eliminate all of the dirty armies and stay alive to complete this mission.
