I've been all over this blasted universe and only ever found one station with the other 2 mark 3 firmwares, and never the weapons version
I've also yet to get the hang of what some of the system script files are telling me to be able to figure it out on my own.
I am running around trying to upgrade the heck out of my mastiff as yet FYI. There seemed to be whole swatches of space I can't enter due to unfriendly guards.