Towards the end of the episode, suggestions of "a western" and "a detective story" are made by the crew in the mess hall. Both were running gags on the Enterprise holo-decks of Star Trek: The Next Generation (1987).
At the beginning, Be'Lanna is wearing a single Starfleet pip on her collar, the rank of ensign, rather than the Maquis rank insignia. This is not an error, but she is running a holodeck program were she is playing an ensign in the story. When she's not on the holodeck, she's wearing her correct insignia.