[RAF_Magpie]

Make a copy of any of the regiment 1KG files.

Rename it Whatever - it has no suffix

edit the contents in notepad to read.

country = GB (what ever country)
id = MG (or rather anything you want here...)
gruppeNumber = 1
short = RAF662 (the same name as your bmp image you are using for badge)
info = RAF662CFSG (what ever here)

That should do ya