The promotion to Swordsman requires you to complete two quests from Modryn Oreyn – “Unfinished Business” and “Drunk and Disorderly”.
Unfinished Business – Talk to Vilena Donton in Chorrol and she will direct you to Modryn Oreyn for this quest. He sends you to Skingrad to talk to a guild member named Maglir who has defaulted on a contract. Travel to the West Weald Inn in Skingrad and he will tell you that he doesn’t think the guild is paying him enough money to complete his mission. From there travel to Fallen Rock Cave to the northwest of Skingrad and find the missing journal that Maglir was supposed to recover. You’ll have to fight your way through some undead to accomplish this. Return to Modryn with the journal. Whether you choose to take credit for finding it or give the credit to Maglir, the quest will be complete either way.
Drunk and Disorderly – Talk to Modryn Oreyn and he will instruct you to travel to Leyawiin and stop three of your fellow guild members from causing problems around the city. Travel to Leyawiin and you’ll find the three troublemakers at the Five Claws Lodge. Talk to Vantus and he will blame the problems on the Blackwood Company because they’ve been stealing jobs from the Fighters Guild. Talk to Witseidutsei, the bartender, and she will suggest talking to Margarte. Find Margarte she will tell you that she will give a job to the Fighters Guild if you can find her five ectoplasm. You can either buy the ectoplasm from an alchemy shop or collect it by killing ghosts and wraiths. Once you’ve collected five, return to Margarte and she will make the Fighters Guild her supplier for Ogre Teeth and Minotaur Horns. Return to the three guild members in Five Claws Lodge with the news before going back to Modryn to receive your promotion.