Big_Jilm_1980

I've been looking around YouTube as I just started learning how to play this game, and I bumped into a video from a couple years ago I talked about finding a bunker in mystery Lake. So I look and I see that there is a Wiki and it has the longer there, but I still haven't heard of or seen any new content with bunkers involve? Are those still something that exists in this game? I know that they're supposed to randomly spawn? But not really sure how it all works.