The smaller departments may seem unnecessary on a ship some days but large naval ships run so well today because every department works together to get the job done and make everyone as happy as possible. If one of the departments isn't on a ship then the other departments will need to step in or the mission will fail and/or moral will go down drastically. Here's a review of the smaller departments on ship:
Administration Department and its rooms
Here's to hoping all of you have an amazing New Year's celebration and the best of luck throughout the new year.