ΔE 10.8, fair: the same colour family, but not a straight swap. Warboss Green is a little darker, more saturated than Weed Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Warboss Green is a little darker, more saturated than Weed Green.
The same difference applies the other way round: Weed Green is a little lighter, more muted.
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 Weed Green on the colour wheel See Warboss Green on the colour wheel
All matches: Weed Green equivalents · Warboss Green equivalents