Shoot the enemies with a pistol or a sniper rifle. Don't let any get away as you move to
new levels. Mouse to aim and shoot. 1-3 switch weapon and R to reload.
Load the catapult and collapse the Vikings in building. Challenge 33 levels and show all your strategic skills to get the best score and all the gold medals.
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.
