First, I would be using the Discord app. I started with the link above and ran Discord in my browser but my guys told me the app was better. The image below shows where
to get the Windows app
Now, once you are in the Discord Wolfpack main channel, simply line up some guys to play with. You can then get in one of the English voice chat rooms and and get their Steam names so you can easily Invite them to your Lobby in Wolfpack.
Now all you have to do go to Steam and start Wolfpack, make a private lobby and Invite them in, then pick the roles and start the game. Let me help if I can, find me in Discord and I will join you. I am in the voice English Draufgänger channel, Stoppro
My Steam name is... yes, it is Subsim