***Donot delete any Rus file otherwise R6 will crash or not run.***
Also download the sounds_eng_000000001.pck file from the link and paste in the sound data folder and last step is to copy the following 3 files from the link and paste them in the sound data folder. I have updated the link with latest fixed streaminginstall.ini file just download and replace it with your original streaminginstall.ini file in the root folder of R6.