Mine is in human resource training and development.
I do not use it on a daily basis, but it does get used when I teach adult students.
Like many, I too did it backwards, as I was teaching shooting long before I ever got the degree.
Doing it over again, if I was not going to carry a gun for a living, I would have not gone to a traditional college.
I would have gone to a tech school and learned how to run a mill, lathe, use EDM and CNC machines, and develop firearms related things.