To start a game as Letho, without any dragons and main quest. No fast travel, need to sleep, eat and kill all the jarls. Being friendly with bandits, thief guild, db. Smth like that. Second, to start as Roche and play mostly for imperial, as a spy, finding someone to kill (maybe to cretate Letho and sent him to skyrim as npc). Sertanly with all hardcore rp settings - without compas, fast travel, and needing to sleep, eat.