Do not officially exist from Activision. Any "offline" version you find is likely a fan-made project (like the Modern Warfare 2 mobile recreation) or a heavily modified, older beta build.
is a free-to-play game developed by TiMi Studio Group and published by Activision. The official game: The Quest for the Ultimate Portable Shooter: Inside
There are five main reasons why this keyword is trending: The official game: There are five main reasons
He selected "Campaign." The first mission loaded in three seconds. He was in a rain-slicked alley, the air thick with the smell of ozone and wet concrete. His character’s hands were steady. The texture on the enemy’s rifle was sharp enough to see the serial number. The texture on the enemy’s rifle was sharp
Stay safe and game smart.