Link:

https://drive.google.com/file/d/1bEhwaS7vz4DOjc0_Ke7oZMrNswO8R94l/view?usp=sharing

Installation:
Once the file is downloaded, go to the following path and put the file in the "save" folder and that's it, just go into the game and do it!.

D:\User\Documents\RealRTCW 4.0\main\save

ATTENTION!:
Make a back-up of your original files, and then when you finish unlocking the achievement, put your original files back.

Once you have it installed, enter the game and select the file "AchievementINFILTRAT" and start the game, just wait a few seconds for the box to lower and that's it.