Are there other differences between Retaliate and the existing bombard action than that it won't reduce the population of the target city? If that is it #42242 should make it possible to use one of the Bombard copies. In that case all that is needed here is an Action Auto Performer.
Reply To kvilhaugsvik
In that case all that is needed here is an Action Auto Performer.
We can have new action kinds in the future, but the Action Auto Performer is the critical part, and usable also outside the use-case mentioned. Let's concentrate to that part in this ticket.
Depends on #47353. Would also want to do general improvements to Action Auto Performers code before getting new instances in -> targeting to 3.3.
fcw.org server has defenders to make counter-bombing (retaliating) when bombed. Maybe we should build proper support for such a feature by introducing "Retaliate" action, and Action Auto Performer for it.