ΔE 11.8, fair: the same colour family, but not a straight swap. Gung-Ho Green is noticeably darker, warmer than Death Korps Drab.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Gung-Ho Green is noticeably darker, warmer than Death Korps Drab.
The same difference applies the other way round: Death Korps Drab is noticeably lighter, cooler.
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 Death Korps Drab on the colour wheel See Gung-Ho Green on the colour wheel
All matches: Death Korps Drab equivalents · Gung-Ho Green equivalents