VMF-124 question

What does the VMF in Marine squadrons VMF-124 stand for?

According to this web site, it means “Fixed Wing Marine Fighter Squad (aviation unit designation).”

The V is for “Fixed Wing”
“M” is for “Marine”, always in the second position
“F” is for “Fighter”

VMA - Attack Squadron (the old A-6’s)
HMLA - Cobra
HMM - CH-46 squadron
VMGR - C-130 Squadron

“H” is for helos
“A” is for attack
“L” = “Light”
the “M” in the third slot is “Medium”
“R” here is for “Refueling”, but the “G” escapes me