The title says it all, we were playing countermeasures, and a speculo advanced into the ZOC of my Celestial Guard Hacker, she was revealed and declared Mapping, I declared Data Scan. Non-FTF I assumed.
No, as an ARO is not a short order, but its own type of skill Objective: The Hacker must spend one Short Skill of the Order and succeed at one WIP roll against any enemy model inside his Zone of Control. The target may declare a Reset ARO no matter which Type of Troop it is, and even if the Data Scan is performed outside his LOF.