Very Nice!
I loved the animation on this tribute, the graphics being way better than any Warhammer 40,000 tribute that has come out on this site. Though the voices of the Space Marines were not very audible. Yes, there are the "geeks" of Warhammer and I see that one of them have come to your site reviewing this.
1. I agree with the dropships, a crate is not very......Space Marine-ish if you get what I'm trying to say.
2. The Eldar really do not have lasguns, they have shuriken catapults (A description being: A rifle that shoots shuriken)
3. But I do disagree with the comment of the terminators being killed by a warlock. Warlocks are agile and very quick, and you showed that in a very great way. And yes, Warlocks DO have the ability to kill terminators, since this is actually based on reality rather than a turn based or real time strategy game.
4. And I'll have to disagree with the neck breaking move from the warpspider to team leader. As you can see there is another Space Marine in the background. Mainly an outline. Who knows if that was the Space Marine that screamed? Or others around him? Assumptions can be made AFTER questions are asked to the creator.
All in all the episode was great, and you put alot of thought into this one. I hope episode II will come out just as awesome as the first, only with an addition of better voice hearing eh?
9/10