Hi Mark! I have rewritten Finn's history to focus more on him, as well as editing the abilities section. In short, stormtroopers were trained mostly in SW weapons, but also in some sparring to teach them to improvise on the battlefield. He's also great at cleaning, thank you sanitation duties. Sadly no husbandry :c

Blasters are powered by plasma energy, so I'm assuming that's not going to be readily available.