P237 EotE Core:
"The crewmember uses powerful shipboard computers to attempt to disrupt the systems of an enemy vehicle."
If successful, he either lowers a ship's shields, its weapons, or inflicts system strain.
Help me out here, but I can't figure out how this thematically works. If you took control of a ship, wouldn't you want to open the ship airlock and space the enemy pilot? I can think of much better things to do rather than lowering the enemy shields. Make him jump to hyperspace... skip the navcomputer stuff, just jump.
I think the only one that makes sense is inflicting system strain, because it represents that perhaps the slicer is overloading the enemy ship with commands. He's not actually successful with taking control of the ship, but let's just say that the Empire's Anti-virus is really cheap and poorly designed, taking way too much CPU power from the ship's systems. If the slicer actually fully slices a ship, I think he'd be allowed to interface with all of the enemy devices, like the airlock for instance, but then again, some of these systems could be isolated from the ship's network. I'm not entirely sure which should be isolated and which shouldn't though...
How would you run it?