ΔE 7.6, close: similar, with a visible difference side by side. UK BSC is more muted, warmer than Zombie Rot.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). UK BSC is more muted, warmer than Zombie Rot.
The same difference applies the other way round: Zombie Rot is 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 Zombie Rot on the colour wheel See UK BSC on the colour wheel
All matches: Zombie Rot equivalents · UK BSC equivalents