ΔE 11.4, fair: the same colour family, but not a straight swap. USAF Brown is a little darker, more muted than Hunter's Quiver.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). USAF Brown is a little darker, more muted than Hunter's Quiver.
The same difference applies the other way round: Hunter's Quiver is a little lighter, more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Hunter's Quiver on the colour wheel See USAF Brown on the colour wheel
All matches: Hunter's Quiver equivalents · USAF Brown equivalents