Well Red Dead Revolver is 'In a separate universe.' from Redemption according to Dan Houser; it's only mentioned as a sort of myth or story in the Red Dead Redemption games. I also can't see Red joining a outlaw gang even if it was a 'noble ' type, considering his real only concerns in Revolver is avenging his parents; the only thing he does to directly help people is giving away Griff's money, although this is probably just because he doesn't need it.