Invasion

You and two other people had a meeting in a shed isolated from the ranch. As the meeting progressed, you guys notice a horde of zombies were straggling towards your little community. This is perhaps one of the largest hordes you've ever seen!
Hurry back to the ranch and warn the others!

TIPS:
-Follow the main road to reach the ranch. Another road should break off near the middle, follow it and you will reach the ranch.
-Get away from the west immediately! That is where the zombies will be coming from.

CHALLENGES:
-Do not use any barricades.
-Don't hunker down on a spot; eliminate zombies while constantly roaming around.