The locations we used for filming was places that were around buildings but also had areas of greenery such as grass and trees. This gave us the opportunity to film wherever we wanted due to the fact that the location change would transit's well.
we have also chosen to use areas that are usually quite populated and industrial that is now filled with zombies to give the effect that nowhere is safe. Therefore we chose certain areas of our school that looked more like industrial areas. This is why we chose an area with prominently bricked and fenced up areas.
We also liked the concept of including some forested areas as the gloomy and twisted atmosphere really build the tension with its eerie and sinister appearance. Having this new location gave us the opportunity to really open up the setting of our OTS effectively.