ΔE 13.2, fair: the same colour family, but not a straight swap. Battle Dress Green is noticeably darker, warmer than Nurgling Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Battle Dress Green is noticeably darker, warmer than Nurgling Green.
The same difference applies the other way round: Nurgling Green 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 Nurgling Green on the colour wheel See Battle Dress Green on the colour wheel
All matches: Nurgling Green equivalents · Battle Dress Green equivalents