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40 Knives
Description Kill 40 zombies with a Bowie Knife (in one game).
Points 250
For the achievement/trophy of the same name, see 40 Knives (Call of Duty: World at War).

40 Knives is an overall achievement in Call of Duty: Zombies. It requires the player to kill 40 zombies with a Bowie Knife in one game of Der Riese.

This is best done before round 10 due to the Bowie Knife losing its one-hit kill ability after that. The players will need at least 6750 points to earn this achievement, with 3750 of those points going towards doors and the other 3000 for the Bowie Knife itself.