Hello. I'd like to request an attribute for alienDeployments: keepCivilansAlive (false by default). If true, all civilians spawned on map not die if player lost all his units or aborted mission by any reason. If false, working as usual.
Possible implementations - intentionally "peaceful" missions, when player should find and retrieve some important item or hunting for unit/creature that unable to massacre whole neighborhood, but where civilians helping player units (police force etc.).