There are few more potent forces in the military than properly motivated chaplains. One was once described to me as being either immovable object or unstoppable force. An accurate description.
It is not an easy job, as they have to face up to some terrible human tragedy and deep depression. They also have to be able, at a moments notice, to take charge, as an alternative chain of command, if the regular chain has failed.
While I have seen both good and bad examples of military clergy, I have never seen what could be called a “ferocious rabbi”. And this is someone that is needed for military personnel.
This is not to say that Rabbi Chaplains are bad. They are often very good. But it is a question of whether or not they are good enough, and in the right way.
You’d probably need a Chabadnik or equivalent, and those aren’t usually interested in being anything but a very evangelistic civilian.