Known units:
T1 Core: Raider (Domok caste - basic infantry)
T2 Specialist: Infiltrator (Zardas caste - shapeshifter)
Wild speculations:
T1 Scout: Flying drone
T2 Flyer: Controller (Zardas caste - crowd control type unit)
T3 Skirmisher: Brawler (Domok caste - melee unit)
T3 Artillery: Flying vessel
T4 Elite: Bigass monster/dragon
What else?
T1 Core: Raider (Domok caste - basic infantry)
T2 Specialist: Infiltrator (Zardas caste - shapeshifter)
Wild speculations:
T1 Scout: Flying drone
T2 Flyer: Controller (Zardas caste - crowd control type unit)
T3 Skirmisher: Brawler (Domok caste - melee unit)
T3 Artillery: Flying vessel
T4 Elite: Bigass monster/dragon
What else?