This is clearly a punishment to humiliate the soldier for some misdeed, you can hear his squadmates laughing at the end.
Translation is shit, "your pot isn't cooking" means "you're fucking dumb", the commander says "tomorrow you'll be walking around with the bow and arrow all day long since you're too fucking dumb to carry a gun, and in the evening during formation, in front of the whole regiment, you will ceremoniously hand over this weapon and I'll give you back your regular weapon".
Funny shit though