The developers of Warhammer 40,000: Dawn of War IV have released an overview trailer dedicated to one of the playable factions.
The focus is on the Orks: they use specific equipment for combat and boast the "cheapest structures in the game."
The game's authors showed a selection of gameplay moments and a couple of Ork leaders in action:
You can add Warhammer 40,000: Dawn of War IV to your Steam wishlist at the following link.