ΔE 12.6, fair: the same colour family, but not a straight swap. AMT-4 Cam. Green is noticeably darker, warmer than Bastion Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). AMT-4 Cam. Green is noticeably darker, warmer than Bastion Grey.
The same difference applies the other way round: Bastion Grey is noticeably lighter, 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 Bastion Grey on the colour wheel See AMT-4 Cam. Green on the colour wheel
All matches: Bastion Grey equivalents · AMT-4 Cam. Green equivalents