In villages who craft weapons and goods on the Frontier, to keep anything from happening to the goods, they're all stored in a location or locations that are top secret. And the Weapons Master is the one in charge of them. The village warehouses held some of the most advanced weapons and items. Some villages if they are too dangerous would have any sale of them prohibited. It would be impossible to list all of the villages that had been slyly infiltrated or even openly attacked by thieves or bandits who learned of such bounty.
On such occasions, the villages Weapon's Master would arm himself or herself with the most potent munitions in storage and bring the fight to them. The weapons master only emerged once all the warriors had been slain.
The Weapons Master of Razin would be a prime example.