ΔE 16.4, loose: different enough that you should pick on purpose. Cockpit E.G.“Faded” is noticeably darker than Gauss Blaster Green.
Can I use Cockpit E.G.“Faded” instead of Gauss Blaster Green?
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Cockpit E.G.“Faded” is noticeably darker than Gauss Blaster Green.
Can I use Gauss Blaster Green instead of Cockpit E.G.“Faded”?
The same difference applies the other way round: Gauss Blaster Green is noticeably lighter.
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.