Had a game the other day where a situation came up with secondary missions and controlling objectives. If I have a single unit large enough to be within range of and controlling more than one objective marker, can it be selected for the action on the Cleanse secondary mission? If so, when the action completes, are both of the objectives they are within range of and controlling cleansed?

I still think yes, but my opponent wasn't convinced, so I just went with them to keep the game going.