Depending on which version of MW2 you are looking for, the compression levels and installation processes differ: MW2 (2009 original)
The game's system requirements are:
Call of Duty: Modern Warfare 2 – Guide to Highly Compressed PC Versions call of duty modern warfare 2 highly compressed pc work
Once you have the game working, the vanilla experience might look a bit dated on a 4K monitor. Depending on which version of MW2 you are
Downloading and installing the highly compressed PC version of Call of Duty Modern Warfare 2 is a straightforward process. Here's a step-by-step guide: even with compressed files
Playing on low-end hardware, even with compressed files, frequently leads to crashes during intensive gameplay sequences, such as firefights.