The Boiling Volcano had large and thick walls surrounding it in every direction. Outside the wall, countless trenches, ditches, and traps were placed to slow down their movement. The undead cavalry only reached two layers of the trenches. This was because of the large boulder formation that limited their movement.
The fortification walls were dotted with tiny holes where soldiers already put their muzzles in. Dozens of Manual Turrets were placed on top of the walls too. With a pair of large cannons and 300 bullets per minute, the Manual Turret was the perfect home defense weapon.
Since the trenches were deeper and deeper as the undead go in, their movement would slow down significantly, allowing the Manual Turret and the soldiers with BC-79 to cleanse the enemy with bullets.
Behind the walls were formations of ball throwers. The goal of these ball throwers was very simple. Shoot the ball when the captains tell them to.
