Some Op's include a strike package as part of an Oplan. The unit would we briefed on available CAS or CIFs. Then the FAC, JTAC , TACP or FCT would be able to contact and control on station/on call sorties.
Conversely with no on station dedicated sorties the FAC/JTAC or the manuver element commander can contact higher and the ALO can file a JTAR for air support. This type of mission will generally be controlled by an AFAC if the unit does not have a qualed Terminal Controller attached.
Sgt. Rafael Peralta ,United States Marine Corps
Company A, 1st Bn, 3rd Marine Regt, 3rd Marine Divison
We will never forget your valor and sacrifice.
Semper Fi !