Most files claiming to be 40 MB are shells containing trojans, miners, or spyware designed to infect your PC.
To help you gauge your storage needs, here are the official storage requirements for various Call of Duty titles on PC: Game Title Official PC Storage Requirement Call of Duty 2 ~4 GB [26] (2009 Original) ~12 GB [27] ~175 GB [25] ~125 GB [23] ~149 GB [28] Safe Ways to Play Most files claiming to be 40 MB are
in a "highly compressed" 40 MB format, it is important to understand that this is . Most files claiming to be 40 MB are