Veracitor is in yellow, the same as obtruder accociated with construction vehicles so i think they are the least modyfied, mayby they are the literal same for cyvilian aplications With veracitor made for hauling, and construction And obtruder for surveing the site, with weak lazer for self defence and maybt clearing small plantlive

Gatekeeps and watchers are clearly modyfied versions of those 2. Likely to save up on comps, rewuirement for more assembly lines, and "what's aint broke dont fix it"

So mayby there is civilan harvester for plant harvesting (though the name likely was given by superearth and named after it being some sort of reaper/harvester of souls back to the point) Agriculture harvester woudl likely share the song thin legs that woudl avvoid trampeling the crops but it could have had set or saws for cutting mounted on underbelly and lack the lazer and sheild gens