Got a question about the launcher.

Hello everyone. I am interested in playing on this server due to the soar the retail server gives me and I wonder some things. Will this server's launcher work if I have my game on steam ? Will this launcher affect other games such as csgo that can get me vac banned ? (Does this launcher changes the game original files ?) Is it safe to play on a private server ? Can I get banned from the original server ?(Sorry for my unsecurity but it's the first time I am trying to play on a private server). If anything is perfect be sure to see me on the mighty burning sand of Valencia Desert