How useless do you have to be to be the drummer in a marching army?
You suck at archery, you can’t use a club properly and god forbid if you use anything with a sharp edge to it. The commanding officer must’ve hated you during basic training.
“Well, shit Arnie. You shot Johnston in the foot, broke his nose and caused several causalities in the process. I’d put you on the front lines, but I’m terrified for the safety of my company. Do you at least have rhythm?”
That’s how I would deal with the misfit of the platoon.