(If you find any mistake in my English, please let me know via a PM)
(Really, I speak terrible English, so please, tell me if I make mistakes. I'd like to improve it a bit )
Having just played and finished DoW a couple weeks ago.. And looking at the SC2 videos.. It has me quite curious.. Terran units resemble the space marines quite a bit.
A space marine only has a few possible iterations if you want it to be easily identifiable from a glance. Besides, Blizzards strength is taking iconic, easily identifiable (and arguably generic) charectors/units and giving them an original tweak or twist (or not in some cases). Also their games are always top notch in gameplay and story.