Deplete enemy's invasion forces and stop their offensive. When facing a large number of enemies, the only way to deter them is to use the powerful Haiphong battery.
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.
