If the game says that you are missing DLLs then search them up online and download them then move it to the game directory the place where 'SCP - CB - Nine Tailed Fox Mod' is locatedif you can't find them then your best bet is to thoroughly read through this again or look at the video link and reinstall the mod. Now, go find the name of the folder in which you extracted the game files and select 'SCP - CB - Nine Tailed Fox Mod' inside the files then a message should pop up saying that the patch was successful. Once you have downloaded WinRaR, open up all the files that you installed and make a new folder in your desktop you can do this by right-clicking your mouse and selecting 'new' then clicking 'Folder'you can name the new folder whatever you want.
Now you have to install the Containment Breach vanilla game, you have to either install v1. This method works for the other versions of the game aswell, v0.