I'm pretty sure those ships you're talking about are Evillejedi's designs, not canon. They're only used in so many mods because they're free released models.
There is the standars corellian light cruiser both corvettes the coreillian destroyer (looks like a long vorvette loads of mods have it) and another corellian ship (again loads of mods have all three) and they are quite powerful and for the ground units you can have corsec t3 b's and corsec soldiers
Dathomir is controlled by Zsinj, so the ships and vehicles would be Zsinj's, however they would have some Nightsister units (which don't appear anywhere else).
Yevethans have the D-Type Thrustships, Trifoil fighters, and some captured Imperial ships.