Three of the groups labeled as Heralds do spawn actual Heralds.
Herald Squad - Ensigns only
Herald Squad - Ens and Lt 03
Herald Squad - Captain 03
Space mobs are fine.
Update: using Herald mobs makes your mission level 60 minimum. Test published one, and only my level 60s could see it. So even though the mobs are labeled "61+" it really means "60+"
Comments
There's no model for the ground npcs at the moment. Currently they're using the Bluegill spawns.
Nevermind, I completely misread what you typed. Yeah... I'll play around with it in a sec.
Herald Squad - Ensigns only
Herald Squad - Ens and Lt 03
Herald Squad - Captain 03
Space mobs are fine.
Update: using Herald mobs makes your mission level 60 minimum. Test published one, and only my level 60s could see it. So even though the mobs are labeled "61+" it really means "60+"