If you're lucky enough to scale it, look to the Marine Corps. "Every Marine a Rifleman" is a close analog for a very large organization. Of course many Marines

If you're lucky enough to scale it, look to the Marine Corps. "Every Marine a Rifleman" is a close analog for a very large organization. Of course many Marines do other things, but they are all expected to be proficient riflemen. A nice thing about studying the military is that most training material is public domain, and the pedagogy is exceptionally well worked out.