I'm also trying to get my mind around the idea of playing the pipes aboard a submarine. I'm sure that the band will be standing on deck, but the very idea of playing pipes inside a submarine seems inhuman.
I enjoy the pipes, singly, in bands and in pipe and drum marching bands, but to play inside of a not-so-large steel pipe would be carrying things much to far. I enjoy the pipes, yes, but I also enjoy the jokes about destroying pipes!
There's the one about a frustrated piper leaving his car, unlocked and with the windows down, in a high-crime area, with his pipes in the back seat. When he returns to his car, he finds that not only has his car not been molested, but that there is now a second set of pipes in the back seat.
In an enclosed space, with hearing protectors, it can be done. Don't know about headroom (folr the bass drone) on a sub though...