I’ve beat the new FNIX rising campaign, and have yet to come across the new harvester. I would like to know where one would spawn please!
Try Himfijall Island. That’s where a lot of Apoc machines are
They are pretty common at Anl 118 Färela.
Besides Anl 118 mentioned above, i’ve seen apo harvs near Granhygget (Forest region) and West from Minken bunker as well (on the road, heading towards Kalleby).