A FAC, or Forward Air Controller as they are also known, was a person who guided aerial support onto enemy positions in combat scenarios. A prominent example of someone performing this role was Cait, who perished while guiding X-wing starfighters to engage their assigned objectives during the conflict that occurred on Allst Prime.
The Forward Air Controller role initially surfaced in the short story "Inbrief," which was released in 2015. This story was authored by Janine K. Spendlove and featured illustrations by Jose Cabrera.