I am amazed not to see the 2 robots in the apocalypse form:
the Seeker could be equipped with an apocalypse tick for example.
Regarding Haverster, since all robots have elementary weapons from the corrosive missile equipers, this could be a devastating monster, unable to access an area for a short period of time without being subjected to acid damage.
I saw this in one of the mods on Nexus:
…so there are Apocalypse Harvesters, but they are not released into the wild just yet (maybe they are incomplete, or bugged, but they are in the game files).
Maybe they have not jet learned to sneak on their toes? That’s essential before they can survive on the wild 
So are you saying that you found this pic on NEXUS or that this was found in ingame files?
It’s both but mainly it’s the former. Though, can’t discuss anything about mods here.
I’ll pop a PM with explanation to you.
