The de facto district headquarters for the Legion in the Narsis district, home to a garrison equal in size to a small fort, as well as lodging for the general (Knight of the imperial dragon) and officers. Should have storerooms and armory. Do not include Dukes silver gear, the Order of Narsis are in Castle Narsis outside the city proper.
The balcony on the upper level of Firewatch's Ember Keep is built with an ex_imp_keep_01 scaled ×1.75. This makes the battlements too high to see over, so someone cobbled together a sort of crude staircase out of benches, in order to give the player something to climb to enjoy the view. That's silly. This mesh is a copy of the floor trishape from ex_imp_keep_01, which can be placed with the same coordinates and scale as any given keep_01 and then slid upwards until the battlements are an appropriate height relative to N/PCs again.
Pair of watchtowers overlooking the Cyro-Morrowind border. Should be stocked with plenty of projectiles and other weapons in the case of an attack, or just to ward off bandits or smugglers. No beds as the guards sleep elsewhere, but include some stools/chairs and some dice or cards for the guards to kill time with while they are on duty.
Census and excise office for keeping books on traveling merchants crossing the border between Morrowind and Cyrodiil. Northern tower should contain the main room for conducting business with the second story being the fort's imperial shrine. The southern tower should be mostly used as a garrison with bunks and living space for guards, but include a small contraband room.
The Keep for the Septims Gate garrison. First floor should be the main floor with space for merchants, with the upper floors consisting of the mess hall and officer's quarters. Western tower that connects to the walls should be used for guard lodgings, training room and an armory. Include a small holding cell somewhere in the int (preferably underground) rather than a full-blown jail.
Helnim IL questline. Quests are given by Servas Capris, a perfectly normal legion garrison commander with a stand-up garrison and ordinary men. These quests are here mainly to provide “normal” Legion content, in the same vein as vanilla’s, to contrast with the abnormal Firewatch Legion content.