I have a small platoon of the GZG UNSC to supplement my Grenadier Traveller Imperial Marines platoon (which is itself made up of two plus boxes of the old Grenadier figures). They mix very well with the GZG figures, and have very similar helmets (for the classic Traveller Imperial Marines look). Also have two platoons plus heavy weapons of the GZG NAC and OUDF troops to make up a less advanced (than the Imperials Marines) planetary force. GZG are nice figures indeed.