So here's the story. I made a custom ORBAT using Operation Trebuchet factions. It all works, but there is one minor caveat. When I use the Player Logistics and call in a group for reinforcements, the transports that bring in the troops are regular ghosthawks, but I want those to be the Pelican transports that are included in the mod.
I specified in the modules for it to only use Faction stuff, however the Ghosthawks are still what brings in reinforcements.
Also, before anyone suggests it, yes, I included the Pelican transports in the custom ORBAT. They're classified under the helicopters category.