The only real advantage humans have over robots is their stamina and fine motor skills. This would make them a cheap and excellent repair drone, but there are certain problems.
What biological modifications should I make to humans to enable them to act as efficient on-field repair crew?
They're effective when:
- They have a decent chance of survival in a drone infested battlefield, i.e: they can avoid and/or (barely) survive getting shot.
- Capable of quick and precise work under extreme stress, and they mostly repair stuff that's too large for nanites to handle.
- Drones are the same as the ones we have today, maybe slightly bigger, also, we have drone tanks.
- Nanites exist but work slow and only good at fixing small delicate mechanisms (i.e: microchips).
- Drones now have aimbots.
- Moravec's paradox
- Humans should be adaptable to any terrain with some extra gear (winter coat). For drones, terrain and climate is not an issue.