>80nm : Labelled Picture is given to provide greater SA and to allow fighter to begin target / sort order and organise package targeting
<80nm : Picture continues through detect phase all the way to target/sort has been conducted. At this point the GCI will, as you put it, stfu.
Inside 40nm - No New Picture range - Labels are kept to aide targeting for leakers and/or pop up threats.
Inside 20nm - Threats passed in BRAA.
Inside 5nm - Call of Merged - GCI unable to effectively help.