Gameplay
Playable armies at the initial release of the game include the Space Marines, Orks, Eldar, and
Tyranids.[4]
The gameplay of Dawn of War II is markedly different from that of Dawn of War and its expansions.
Jonny Ebbert, the game s lead designer, describes the feel of the game by saying that it  takes
everything that was great about the original and combines it with the best that Company of Heroes
had to offer. [5] There is a heavier focus on cover, which gives more substantial defensive
bonuses.
Accordingly, there is also new emphasis on methods of dealing with units in cover. Some weapons,
such as grenades and other explosives, can destroy cover, while others, such as flamers, ignore
cover bonuses completely. Other differences between Dawn of War II and its predecessors include
improved unit AI  squads under fire seek cover, for example , more realistically sized vehicles,
and
an improved physics engine.[5]
As a Games for Windows - Live game, the game uses the Achievements system from the Xbox LIVE, and
is the first widely released, PC-exclusive game to use them.[6] Because of this, a player must be
able to connect to the Windows Live servers in order to access the game s multiplayer features.
more: http://en.wikipedia.org/wiki/Dawn of War II