Currently using the 3CB factions as our OPFOR/Civilian faction
When using ALiVE's headless client manager the civilians were showing up as vanilla, IE they were not redressed.
Switching to the ACEX headless client manager solves this problem, however then you run into issues with the combat supports not working properly as they need to be local to the server.
The ALiVE HC manager just needs the same "naked unit work-around" that ACEX has.
I believe that's found here
https://github.com/acemod/ACEX/blob/master/addons/headless/functions/fnc_transferGroups.sqf#L97