The closest legitimate experience is for PSP. Despite its name, it has a similar setting, weapons, and killstreak system to MW2/MW3. For this guide, we will focus on getting the best possible MW2-like experience on PPSSPP, primarily using MW3: Defiance with mods, or other community projects.
The only official Call of Duty title developed for the PSP was Call of Duty: Roads to Victory call of duty modern warfare 2 ppsspp iso highly install
An ISO file, also known as an ISO image, is a file that contains the exact copy of a disc's contents, including its file system, data, and structure. In the context of gaming, ISO files are often used to distribute game data, which can be mounted or extracted to play the game on an emulator. Call of Duty: Modern Warfare 2 (PPSSPP ISO)
