The Vostroyan Firstborn is the name given to the Militarum Regimentum of the Astra Militarum that originates from the industrial Hive World of Vostroya located near the Halo Stars in the Segmentum Obscurus. The Vostroyan regiments have served the Emperor for countless centuries, though in truth they fight to absolve themselves of a terrible shame incurred by their ancestors over ten millennia ago when, during the dark days of the Horus Heresy, Vostroya failed in its duty to the Emperor of Mankind.
These Chimera and Leman Russ models were on display at Warhammer World.
The Chimera is an Infantry Fighting Vehicle, an infantry transport designed to transport men to where they need to be, then provide support fire and cover behind its armor.
The Leman Russ is the main battle tank of the Astra Militarum, and is also the most widely deployed tank in the Imperium. The tank is named after the Space Wolves Primarch, Leman Russ. Far from a sophisticated vehicle, the Leman Russ was designed and built with reliability and versatility in mind. It can survive the worst the galaxy can throw at it, and can run on almost any combustible liquid fuel.