Here is the Komtur of the 3rd Gruppe 2nd Gefechtskompanie of the Galactic Knights Space marine Chapter. Komtur Karl is a former member of the Elite first Gefechtskompanie also known as “Mondkrieger” ( Moonwarriors) , therefor he wears the icon of the Mondkrieger on his left knee. A blue moon with the name Mondkrieger above in red. On the right knee he wears the Gruppe sign of the 3rd Gruppe a red chapter cross.
Here is the icon of the Mondkrieger a bit bigger :
The icon on the figure is a decal I made with decal paper and a printer. As I do all my decals.
Here are some more pictures of Karl:
The black helmet also denotes him as a member of the first Gefechtskompanie. All members of the first Kompanie wear black helmets instead of white ones to denote their elite status. So as a former member and a Komtur he has a black helmet with a red stripe denoting his rank.
Next up some more members of the 3rd Gruppe.