ΔE 9.8, close: similar, with a visible difference side by side. Russian Green (4BO, 1947-) is a little lighter, more muted, warmer than Death World Forest.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Russian Green (4BO, 1947-) is a little lighter, more muted, warmer than Death World Forest.
The same difference applies the other way round: Death World Forest is a little darker, more saturated, 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 World Forest on the colour wheel See Russian Green (4BO, 1947-) on the colour wheel
All matches: Death World Forest equivalents · Russian Green (4BO, 1947-) equivalents