THQ has released a new developer diary for Space Marine, the upcoming third person shooter that's set in the Warhammer 40K universe. The diary provides a nice background on the canon of the series and provides you with a very high level overview of the plot and some of the enemies you'll be facing.
The game does look really good and there's no doubt that the folks at Relic know what they are talking about when it comes to Warhammer universe as they knocked it out of the park with the Dawn of War II games. Kind of buried in the trailer is the hint that you'll be fighting more than the Orks in the game, which makes sense as you've got the Eldar, the Chaos Marines, and even the Tyranids who wind up at the end of your chainsaw sword.