MACHINE INVASION!
No, seriously, many good suggestions about robots were made previously, yet every one was rejected, because it's not postapocalyptic enough...
And the Wasteland would be full of them, what doesn't exactly represents the postapocalyptic landscape.
Would it really? The follower limit is now working globally and for parked followers, so there wouldn't be Calculator Armies invading the Westcoast. (begone, Tactics heretic!)
Also, there are people in Wasteland, owning single robots.
If we rehash the old suggestions according to new rules, like narrow-specialised "robot slavers", high Science, Repair, spare parts and Small Energy Cells, supply the robots with traits the ordinary slaves/mercs cannot fulfill and taking some advantages of the living, you could give a "golem" into player's posession.
What i would suggest, the robot amount per player should be not more than ONE and require a constant maintenance with SEC's and electronic parts. Your whole attention will be concentrated on this one robot, instead of 10 slaves or mercs, which get their food by themselves.
That would also hinder players to make dozens of Robotics Engineer alts. They would spit on the hassle and go PvP instead.
A dedicated Robotics Engineer would think the other way around.
(You could get a Flying Eye for scouting, a BrainBot for SG fire support or transport, if you are well-versed in Robotics, you could build yourself a expensive Sentry Bot BUT NOT ALL AT ONCE.)
It could be even improved, if the robot deactivates himself, if the owner is not around, except Base Turrets, feeded by the Generator.
That's all for this moment, i think the arguments are valid enough. You're free to post counterarguments.
Letting the thread die or lock it doesn't count.