How many ballistic knives can you get in zombies?

In Call of Duty: Zombies, players can typically find ballistic knives in specific maps or modes. The number of ballistic knives available may vary based on the game version and the map being played. Generally, players can acquire them through the Mystery Box or by specific in-game mechanics, but there is usually a limited number of them in a single match. Always check the game's current mechanics for the most accurate information.