Currently, using custom units is still tedious, you need to copy and paste loadout codes onto every unit or click on each Zeus unit, and then go to arsenal and manually load the loadout to each infantryman. Far more difficult than placing prefab units made in a mod or the vanilla prefab units. It would be nice if you could export loadouts to registered placeable units in editor or Zeus.
Imagine, you make a "USMC Rifleman" with HLC weapons in Arsenal for example, go to place a unit in Zeus/editor, pick the side you want a unit to be, than select a custom "Arsenal Loadouts" faction (this faction would be available in all human sides, Bufor, Opfor, Indfor, or Civilian) listing all of your saved loadouts as one-click place-able units, then select "USMC Rifleman". That would be great.