http://tieba.baidu.com/p/2656379845 Even after google translating, the whole thing is still very confusing. Says something about bringing squads of NPCs back into the game.
This spot is fairly nice, tons of room for farming ant base building. http://pzmap.crash-override.net/#0.7666743167719705,0.12249711031472678,144.2901234567902
I'm going to get 1-3 NPCs and hold out here http://pzmap.crash-override.net/#0.7660113904527418,0.12258246672662627,169.75308641975315 It's a fairly decent safehouse, I've been there a month already and only had one zombie in my backyard.