in the space marine codex as well as the tyranids codex their is referance of the Ultramar Defence Force. i wasent sure if this is a fluff post or a army list post but i was wondering how one would go about creating a UDF i mean i think their training would be better than most gaurdsmen do to the Ultramarines so does that mean you would take as many storm troopers and veterans as you can? also does anyone have any ideas on how they would be painted or modeled? all i can see is using cadian troops with Ultramarine blue armour and like grey fatigues? would you use the Imperial gaurd codex or one of the inquisition codexs because they let you take gaurdsmen and space marines to represent the marines fighting alongside the UDF?