The face of the occupation. Humanoid, formally armoured, and the closest thing the Horde has to authority on the ground. Marshals hold landmarks and government sites, carry the standard, and are the ones a human negotiator would be sent to speak with — which is the point of them.
Horde: Auxiliary
The body of the occupation force, drawn from every world the Axis has taken. Saurian, avian, attenuated, beast-influenced — anatomy varies enormously and nothing about them is standardised except the armour fitted to each frame and the symbol they carry. They hold perimeters, plant the flag, and deny movement.
Horde: Bulwark
The heaviest thing the Axis puts on a street. Massive quadruped-derived and heavy bipedal bodies from high-gravity worlds, plated in Axis armour tailored to anatomy that never evolved for it. Bulwarks do not chase. They arrive at a chokepoint and make it impassable.