...I got literally nothing to add, you've been briefed on pretty much every 40k game in existence. Apart from a mild desire to educate you on the tau (I don't consider the Tau any more "good" then the imperium, the tau approach is just much more insidious and hidden under a facade of benevolence which makes them look good in comparison to the Imperium which in most cases HAS to be the way it is or it falls apart and humanity will get devoured and tentacle raped by all sorts of galactic horrors and daemonic entities). To put it bluntly, when the Imperium has to sterilize a bunch of people, it's out of fear of daemonic influence. When the tau do it (it's one of the endings in dark crusade), it's for the lulz and because they don't want to have bad PR, so eliminate them over the generations (all the whilst using said humans as cannon fodder units).
Anyways all I can do is add that for dawn of war there's a bunch of amazing mods (try the ultimate apocalypse mod!), also don't listen to people when they tell you to stay away from soulstorm, unless you're playing vanilla multiplayer or are masochistic enough to play the campaign that's in every way inferior to dark crusade, then you'll be getting soulstorm for the mods, of which there are many, including some fabulous revamped sisters of battle.
I'm also hesitant if to recommend you check out the more recent Space Hulk game.. Problem is it's very repetitive and not sure I'd recommend it to anyone else but the most hardcore of fans. Yeah better stick with the dawn of wars I think.
Edit: Also remembered the existence of an iphone 40k game (horus heresy, music is best thing about it), a lane defence game on steam, an xbox live coop shooter and this little gem of a flash game:http://dagobah.net/flash/Space_Marines_vs_Spartans.swf
Anyways all I can do is add that for dawn of war there's a bunch of amazing mods (try the ultimate apocalypse mod!), also don't listen to people when they tell you to stay away from soulstorm, unless you're playing vanilla multiplayer or are masochistic enough to play the campaign that's in every way inferior to dark crusade, then you'll be getting soulstorm for the mods, of which there are many, including some fabulous revamped sisters of battle.
I'm also hesitant if to recommend you check out the more recent Space Hulk game.. Problem is it's very repetitive and not sure I'd recommend it to anyone else but the most hardcore of fans. Yeah better stick with the dawn of wars I think.
Edit: Also remembered the existence of an iphone 40k game (horus heresy, music is best thing about it), a lane defence game on steam, an xbox live coop shooter and this little gem of a flash game:http://dagobah.net/flash/Space_Marines_vs_Spartans.swf