ΔE 12.2, fair: the same colour family, but not a straight swap. Camouflage Green is a little darker, cooler than Mustard Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Camouflage Green is a little darker, cooler than Mustard Yellow.
The same difference applies the other way round: Mustard Yellow is a little lighter, warmer.
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 Mustard Yellow on the colour wheel See Camouflage Green on the colour wheel
All matches: Mustard Yellow equivalents · Camouflage Green equivalents