For the achievement/trophy in Call of Duty: Modern Warfare 2, see Professional.

The Professional is a campaign-related achievement/trophy in Call of Duty: World at War. It requires the player to kill all of the Amsel's henchmen and their attack dog without reloading at all, in the beginning of the mission "Vendetta".

This can be done by using one bullet for two enemies (multiple times), as there are too many enemies to kill with individual bullets. The dog can also be killed with a knife attack if it charges after the player to conserve ammo, though it must be done before shooting the German soldier with the dog.

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