In this guide I will tell you where to find demolishers and runners to complete quests events Winter Tales.
How to Farm Zombies
Where to Find the Demolisher
You can find demolishers in the Old Village in this place.
All you need is to run 150-200 meters after each kill and run back so that he is reborn again.
Where to Find Runners
Runners spawn very often in Garrison Boulevard, so go to this area and run along it.
By runners he mean Bolters i think