Imagine there is an advanced spaceship. It's huge, and it's equipped with cannons operated by some kind of advanced energy source (atomic and upwards). This source is located in the same room as the cannon or in the cannon itself.
A normal shot would be triggered through a command to the central ship computer. So from the point of view of the cannon, there will be some sort of wired or WiFi signal that will activate the shooting sequence.
Now two characters get access to the cannon itself (physically) and want to produce a single shot. They have no equipment with them aside for one lazer pistol. One of them has advanced knowledge of technology, including ship construction data.
How could they force this cannon to shoot?
- It's okay if the cannon is damaged after this, since only one shot is needed.
- It's even okay if one character needs to die to accomplish this.