I checked captain commando on stand alone fba and it won’t dump the nv ram. It only works with dipswitches, this is not supported on retroarch either right?
I got to play 4P on batcir by just replacing the nv file so fortunately the auto-load is not a must for service menu changes, although it would be very welcome regardless for things like high-score, or even maybe those games that only have dipswitches, as a workaround of some sorts.