Bingo

Bingo is a military aviation code-word that indicates an aircraft has just enough fuel remaining to make it back to base to refuel. A Pilot declaring "Bingo" on the Radio is typically making it known that they are returning to base immediately.

Pilots may instead decide to stay over the battlefield, knowing they won't be able to make it back to base before the engine sputters out, but hoping to make a difference on the battlefield before they inevitably crash. This is extremely rare in ShackTac.

Note that the term "Bingo" may also be used (informally) as an alternative to "Winchester", a term that describes an aircraft as having run out of ammunition for one or more of its weapons. In this case, the "Bingo" call will be followed by a description of the weapon/ammo that's been depleted, or just "Bingo on ammunition" to indicate no ammunition left for any (effective) weapon.