With the Gears of War 3 release date of September 20 right around the corner, Epic Games and Microsoft have a slick new trailer set to air on TV starting this weekend. "Dust to Dust," set to the song "to Dust" by Mazzy Star, shows Marcus charging through the thick of the locust and lambent horde in the fight to save humanity. The trailer is the third in a series following the moody announcement trailer "Ashes to Ashes" and "War Pigs" at this year's E3. Hit the jump to check it out.