Wild West in its golden age or prime years. It would follow the Van Der Linde gang up to the Blackwater massacre, heck maybe thats the epilogue. Main characters are Dutch and Hosea (switchable) in the first half of the game, other half is Mac and Davey Callender (switchable as well). As for the Jack idea, maybe it is a red dead revolver or shorter game. Red Dead Reunion. In the 1920s, but not as a mafia mobster, but as an anarchist in a fringe movement trying to start a revolution.