Hey Strmnd,
Been a long time since I worked on tanks and smokers. But at it again. YHR posted about audio exciters. I'm not sure what you're doing with your sound driven smoker, but it looks awesome. Wonder if you could use the audio exciters instead of a speaker.
I just rebuilt my KT with servo driven elevation and recoil, a slip ring, etc etc, and since I don't have anyone to IR battle with, I fitted the barrel with a socket for a BP-firing module or for plugging in a superbright LED. But I still think the best would be a smoker type gunshot simulation. Are you still working on that?
Always interesting to see your creativity.
Best.