Dominate the Game of Thrones with Mount and Blade

A player of Mount and Blade woke up and found himself as Arthur Bracken, a small lord in the world of Game of Thrones.
In the year 298 of the Conquest Era, Robert Baratheon had just welcomed Eddard Stark back as Prime Minister, Littlefinger Baelish was still causing chaos, Stannis had sneaked back to Dragonstone to recruit troops, and the political structure determined by the War of the Usurper was shaky.
The War of the Five Kings was about to break out. In order to protect himself in the next war, he was ready to escape after crossing over, but a series of events in the family territory made him decide to do something, so:
Stock up on food, prepare armor, recruit new soldiers, strengthen the castle, contact relatives, train new soldiers...
But when he felt ready for war, a letter from the lord summoned him to King's Landing to participate in the tournament.
So he set out on the road to King's Landing, and also on the road to dominate the entire Game of Thrones world.
From the Last Hearth to the Green Arbor, his notoriety is known to everyone;
From Lannister Harbor to Dragonstone, his evil deeds are known to everyone.
Defeat the Hound, capture Jaime, save the Imp, and exorcise the Devil on the Mountain;
Located in the Riverlands, broke through Casterly Rock in the west, attacked the River Bend in the south, and went to the King's Domain in the east, and finally dominated the world of Game of Thrones.