Campaign Mode strategy: At the start of this level, you may scatter your cannons across the map as seen on the image. Secure choke points with barracks on strategic locations to make full use of the cannons. Remember to place Fee at the middle to avoid her getting killed. Depending on the given wave, you may re-position Lancelot to help hold the mob. You may put up an additional archer tower to help clean up the left-over enemies. During the 3rd wave in this level, you’ll be introduced to the Hero Bolton. Use his Lightning attack to easily trim down the slime mob. Position him at the middle section like Fee, but near the road as he tends to have a shorter range than that of fee. As you reach the 5th wave, make sure to have upgraded your cannons to their fullest, followed by the upgrade of your barracks. This strategy helps a lot in securing the villager’s life as the rockets can easily attack enemies even those from afar and does an area damage which damages multiple enemies at once. At the end of the last wave, you will have 1 archer tower, 3 barracks, and the rest are cannons.
Legendary strategy: Have a spread put combination of cannon and barracks in this one. Have your ranged Heroes and the wolf secure the road on the right side while Lancelot hold off the route on the left side. Upgrade your barracks at least up to the blue one (More HP). Upgrade your cannons with rockets to shave off the enemy clusters.