The trailers give away very little of what the story is, which is a good thing because that leaves a lot to be seen. Still, the reason why the three factions fight is over an artifact called the Spear of Khaine. This seems rather cheesy, but I will hope for the best in terms of execution.
So how do the Space Marines know the artifact is tainted by not the Eldar? Normally, it is the other way around with the Eldar trying to prevent humans from acquiring Chaos artifacts that would ++heresy redacted++ them.
Why are there Knights in the Space Marine army? Couldn't they just use the Fellblades instead?
Will there be Chaos or Necron as hidden race in the game? Some of the structures heavily hint at Necron.
There are, I believe, 16 missions. Since there are 3 factions, will we have a big showdown at the last mission where Orks, Eldar and Space Marines unite against a common threat?
Who is Kyre and why is he the leader of the Eldar? Why is the Autarch not a even a unit?
What are your thoughts on this? I have not read the comics yet, so if you have, please shed some light on this.