ΔE 13.6, fair: the same colour family, but not a straight swap. Armor Green is a little darker, cooler than Zombie.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Armor Green is a little darker, cooler than Zombie.
The same difference applies the other way round: Zombie 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 Zombie on the colour wheel See Armor Green on the colour wheel
All matches: Zombie equivalents · Armor Green equivalents