"These lands of lush pastures are an ideal place to establish a colony that can feed hundreds of colonists. Although the meadow is located in a region far from the large swarm of infected, don't let your guard down. Small groups prowling nearby can approach the colony from any direction. Build a great colony worthy of the Emperor."
The main challenge of this map comes with the small map size and open area, which means infected may get close to the colony from any direction, and any noises can easily attract runners from the edge of the map. You need lots of walls and Rangers on patrol.