Most of that has been done already.
There were attempts to install small arms on cheap drones and to make them "fighters". Probably, still in the prototype stage.
Hand grenades, small bombs, and other ordnance are dropped in hundreds if not in thousands every day.
People (wounded) have been carried by drones since 2023 (maybe since 2022).
A man-carrying drone where a man is an operator sounds weird at first glance but, who knows?
Real story. Ukrainian soldier fell overboard when his boat escaped the attack by an enemy jet and spent 14 hours at sea. He was rescued by another boat and that was extremely risky in the area where Russian A-50 can see almost everything.
Now, imagine that there is a rescue drone (marine or air) that picks up the survivor and allows him to control the movement on its way back. For example, to avoid an obstacle that is not detected by a remote operator...