ΔE 11.6, fair: the same colour family, but not a straight swap. Kasrkin Green is a little darker, cooler than British Camo Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Kasrkin Green is a little darker, cooler than British Camo Green.
The same difference applies the other way round: British Camo Green 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 British Camo Green on the colour wheel See Kasrkin Green on the colour wheel
All matches: British Camo Green equivalents · Kasrkin Green equivalents