Some of the challenges in Call of Duty: Modern Warfare 3 specifically require Operator kills, and most have even more specific requirements to look out for. Here is how and where to get Operator assault kills within the game.
What are Operator Assault Kills in MW3?
Operator assault kills means that player will have to get kills with an assault rifle in any of the competitive multiplayer modes. That means the Campaign and Zombies modes are off-limits, and getting kills in those will not count towards any of the challenges that call for it.
