In reality, I would envision the quintessential military mount as being smooth, for the simple reason that in a trench, the rusticated bowl will quickly be caked with dirt and grime in the troughs of the briar. Whereas a smooth bowl could be easily spit upon and wipe completely clean on one's trouser leg. I would say that it should not be a shiny, polished finish, for the sake of avoided needless glare, but instead a matte finish.
Just my take on it.