Warhammer 40,000: Dawn of War - Winter Assault

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

This expansion adds all-new units and strategies to the exciting gameplay offered by Dawn of War. The Imperial Guard brings new weaponry, including heavy armor, new troop units as well as defensive and ranged tactics overwhelming numbers. Coupled with new abilities, this fighting force is as lethal as they come.

Single-Player Campaign
Winter Assault offers two choices: the Order Campaign and the Disorder Campaign. The Order Campaign puts you in control of the Eldar and the Imperial Guard in their epic struggle to protect the Imperium of Man. In the Disorder Campaign, play as the Orks and Chaos Space Marines in their efforts to crush any resistance to their chaotic way.
Revel in new and improved gameplay features
A new tech tree, 100’s of new animations and endless new strategies will greatly intensify your Dawn of War experience.
Direct your troops in all out war
Command them across harsh new winter battlegrounds with enhanced urban terrain and additional interactive object and structures.
Improved multiplayer
20 new maps and advanced online features including observer mode, arranged team play and improved auto match push Dawn of War multiplayer to the next level.
Hone your multiplayer skills
The new skirmish option allows you to practice combat techniques against computer-controlled opponents on a multiplayer map.
Imperial Guard
Since the beginning of the Imperium of Man, the Imperial Guard has stood as its pillars of protection. With billions of men from more than a million different worlds, they are the largest and most diverse fighting force in the galaxy.