ΔE 22.4, loose: different enough that you should pick on purpose. Akhelian Green is noticeably lighter, much more saturated, cooler than Gunner Camo.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Akhelian Green is noticeably lighter, much more saturated, cooler than Gunner Camo.
The same difference applies the other way round: Gunner Camo is noticeably darker, much more muted, 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 Gunner Camo on the colour wheel See Akhelian Green on the colour wheel
All matches: Gunner Camo equivalents · Akhelian Green equivalents