To use the Teknogods 2.7.0.1 file, you generally need a clean installation of the game updated to the correct patch.
Because it removes many of the background DRM checks of the original game, it can actually lead to better performance on older hardware. How to Install and Set Up Teknogods 2.7.0.1 File
The Teknogods 2.7.0.1 file is a for Modern Warfare 3 (internally known as IW5). Created by the TeknoGods development team—who are also famous for their work on TeknoParrot—this file allows the game to run on dedicated, community-hosted servers rather than relying on the original matchmaking system. Key Features of Version 2.7.0.1: To use the Teknogods 2