Unless that gun is an area effect weapon, the cat’s probably fine. Pissed off and hiding for it’s life, but otherwise fine.
Cats tend to know when someone means them harm, and after having lived on the ‘Outcast’ with all it’s slammy, noisy and shooty parts, I figure that cat, having lived through being on a Naval Vessel, in Space, in a VACUME, has probably developed some pretty good reflexes and can sense when someone’s about to do it dirt.
Of course, I wouldn’t want to be her when that little three to five kilo ball of furry hate comes flying at her head! Trust me, a ticked off feline can do a LOT of damage if it’s fighting for it’s life!