((OOS: Actually, Kioet's jaw is covered by the mask, which is immobile. You can't tell if he's speaking through it. [It doesn't look like the suit in R15's sig. XD]))
Imperial Base: Datacore
Aren: You're correct, your armor should be sufficient to stop his lightsaber blade. On the other hand this being has some unknown supernatural powers. Your armor is enhanced to deal with some of that, but if he's about to kill you, feel free to use lethal force. Right now I recommend using your suit's integrated weapons. The flamethrower, lightning, frostthrower and toxic cloud weapons, specifically. You should be able to mentally control the lethality. If you want more defense, you've still got the cortosis-alloy staff on your back.