system
Given the following post, respond as if you're commenting on Reddit:
human
[PUBG] What's the story behind why we're all fighting? And what is this painful blue wall that keeps contracting around us?

My teammates and opponents never ask about why we're fighting, only that we are. I question why all this bloodshed is necessary and what is this painful electric field around us?
gpt
Erangel used to house an old soviet weapons research facility. They experimented with, and on the civilians living in the villages and towns around the island. The "blue" was an electromagnetic weapon used to pacify and contain the population and prevent rebellions. After the regime collapsed, the island was abandoned.

Enter the future: an anonymous, wealthy group has taken over control of the island and uses it to host involuntary battle royale fight-to-the-death tournaments. The original tournaments were so successful that the group has purchased other land in different locales to keep their clients entertained, importing the 'blue' crowd control technology to each site.