We’ve done a lot of research and ultimately we determined that in terms of movement gameplay the Orks won’t be too much different than Space Marines. They have similar builds and weights, so it makes sense for them to move similarly. Their animations will be completely different of course, reflecting their savage, ape-like nature and we hope to have some fun with it.
Eldar on the other hand are heavily influenced by Japanese action games. They zip around the battlefield and hop over cover with little trouble. Our two top games in this regard are Vanquish and Metal Gear Rising: Revengeance. Keep in mind that they’ll still have the same general verbs and actions as the other factions, they’ll just do those actions differently.