I have gone countless days salvaging for Nightshade Berries on the Camp and Lake as well as killing all zombies when they respawn. In the end all I ever obtained were 3 Nightshade Berries and I accidently wasted one on making a med kit. I require 4 to make an Antidote. Can someone tell me if I am doing something wrong or if there just is not enough of that in game?
PS I have killed all the zombies so many times and they no longer spawn items like in the beginning.
I also obtained 1 of the Antidotes from the salvage point in the Lake area salvage point outside by the trash once but never again.
I have since accumulated almost 20 of just about every other resource in game.