i think there is another reason titans are main focus...its marketing strategy...who looks at a titan and sees the closest resemblance to the halo franchise..consciously or sub consciously it triggers fans of those games to be drawn towards destiny..everyone else we just love the game its the people that HALO is the hot button and they push it with keeping the titan as the "main" influence....we all know hunters role in crota...BLAM him up! [spoiler]I play them all...they are all awesome.[/spoiler]