The tower is not completely used for administrative duties. Military supplies and equipment are stored on the lowest level ready for access in times of need. The second floor as discussed is office space and serves as defense against attackers. The 3rd level is the barracks where there are bunks for 2 dozen soldiers and plenty of cots if more sleeping arrangements are needed. The fourth level is the dining room of the tower. There is a pass through from the Tavern to the tower and it can be used to pass food and drink to the troops without them needing to go to the Tavern. It helps the guard captain make sure the troops are not drinking on the job 😛 The 5th floor is a prison to contain dangerous animals and prisoners.