For the Zombies team in Call of Duty: World at War , see Marines (Zombies) .
For the camouflage in Call of Duty: Modern Warfare 3 , see Marine Camouflage .
"Semper Fidelis. "
— United States Marine Corps motto
The United States Marine Corps or USMC is the United States Military's amphibious combined arms branch. The USMC appears as a faction in Call of Duty 4: Modern Warfare , Call of Duty: World at War , Call of Duty: Modern Warfare 2 , Call of Duty: Black Ops , Call of Duty: Modern Warfare 3 , Call of Duty: Black Ops II , Call of Duty: Ghosts , Call of Duty: Advanced Warfare , Call of Duty: Black Ops III , Call of Duty: Infinite Warfare , Call of Duty: Modern Warfare Remastered and Call of Duty: Modern Warfare .