- Adding to my previous suggestion, have medical skill influence the rate that an incapacitated pawn takes damage while being rescued or captured. For medical skill level 0-4, cause damage rate to increase (inexperienced medics cause more harm than good), and at medical skill level 20, no damage at all.
- Make raiders prefer to shoot at colonists firing at them, rather than at colonists attempting to rescue others, until there are no other targets in the area. Someone shooting at your team should be a bigger threat than someone dragging their friend out of a firefight. Unless of course they've got a totally cruel leader.
- Make colonist rescues automatic when a colonist is given the doctor job.
- Not sure if this is a bug, but colonists need to be able to put out burning colonists that are outside the home area.
- Have fires leave behind ash that fades away in time on terrain, or burn marks on man-made flooring that can be cleaned by colonists.
The ability to forbid things from interaction. For example, a lot of structures deteriorate over time but often I'll colonists running of to repair them when I would rather have a million other things done. Could you let us say... forbid chunks of a wall? They would be ignored and wouldn't get repaired until the forbidden flag is removed.
For that you might be interested in setting manual priorities in the colony window. I usually just untick the job from every colonist if I want other things done for the short term.