This is an interesting episode in which the Voyager crew has to stop a misguided missile from the alpha quadrant that is about to kill millions of people on a planet which it has falsely acquired as its target. The irony is: It is a missile that has been captured by the Maquis and reprogrammed by Torres once to go for a Cardassian target but was pulled to the delta quadrant just like Voyager and now is a ticking time bomb.
But let's talk about the elephant in the room: The highly devastating, self-guided and autonomous Cardassian missile with self defense and countermeasure capabilities and a sophisticated AI that is able to predict probabilities of a mission failure and can act accordingly. A missile that can destroy a whole moon or half a planet. Why did we never see this weapon in use by the Cardassians before?
And why would they build a missile that is basically a shuttle? With enough room inside to stand and walk. With life support, environmental controls and lights (breathable air inside as well as a warm atmosphere, air pressure and humidity). With artificial gravity. With computer stations, monitors and input consoles. With an intruder detection system consisting of a DNA scanner and voice recognition. But most of all: With a carpet! Just imagine - they built this highly advanced WMD and then a handyman worked for hours to lay a carpet on the floor in a missile that is about to be destroyed in a big explosion. A wonder that it didn't come with food replicators, too. Maybe only in the MK II version.
And why does the computer not just switch off the lights and the artificial gravity to prevent Torres from sabotaging its mission?
In the end Janeway would even sacrifice Voyager to stop the missile which shows again her character and her strong beliefs in Starfleet values. But luckily Torres is able to blow the missile and its carpet up before it can hit the planet or Voyager. Mission accomplished!