If they have a custom profile link you will have to use an external site. You can find this by copying the URL of your friend’s profile. First, you will need your friends Steam ID. Theres a couple more things you will need to do prior to pairing up with someone and playing. Your game must NOT be open during this process, or else it will not carry through even if you save.
You will find a file called options.ini open it with the software of your choice (notepad) and go down to where it saysīe sure to Save your change before closing the options. To do this you’ll have to go into your options to enable it. First thing you must do, is enable your Debug Console.