Dawn of War 3 Factions Guide Space Marines In this guide, we have detailed all the units associated with these factions, required cost, and faction superweapons.įor more help on Dawn of War 3, check out our Base Building Guide, Metagame Strategy Guide, and Resources Guide. Each of these Dawn of War 3 Factions, Orks, Eldar, and Space Marines, has unique strengths and weakness that you need to use to your advantage.