This stage requires the player to build a vehicle capable of killing units. This can be accomplished in a variety of ways as the units are very fragile, requiring only a minor amount of force to be killed. Regardless, the player also has a large arsenal of weapons at their disposal.
The only real threat are the Marksmen, who will fire arrows at your vehicle, destroying it if it is unprotected. The knights cannot directly attack your vehicle, however their corpses act as an obstacle, and can render vehicles immobile when trying to traverse over them.