We see that Finn can fight with a lightsaber, first on Takodana against strormtroopers and later on Starkiller base against Ren. Is this something that's part of his back story that we're going to find out later, or is there some little-known fact about Stormtroopers that they're trained in hand-to-hand combat with non-projectile weapons? If memory serves, this is the first of the films that shows a stormtrooper brandishing anything besides a blaster-type weapon; as such, there's never been any suggestion that they are trained with other types of weapons. Answer Because he was trained for it In " Before the Awakening " book (Disney canon book that is a prequel to Episode VII, detailing Finn's training), Finn's chapter covers this in detail: The following morning they started on intensive melee combat training. This was done outside the simulators, in one of the exercise rooms designated for the purpose. Previously, FN-2187 and the others had trained...