A formation order is a command arrangement; mutual-support separation describes actual ability to help nearby units. Neither is the same as range to an adversary.
LineCoordinated weapons and concentrated fleet response. Close or Extended support depends on actual separation and equipment.
Close ScreenProtect named assets. Close support permits immediate point defense and nearby screening if systems can physically reach.
Distant ScreenForward scouting and warning. Typically Extended or Detached; cannot magically protect the rear with close-range PD.
IndependentDetached mission; no automatic defensive or targeting support from the parent fleet.