Looking on steam (http://steamcommunity.com/sharedfiles/filedetails/?id=553088396) I need to use this simulation port somehow but how and where do I input it? Through the firewall or through the router to port forward?
Both....every firewall you have needs the ports opened. Each server needs five ports open now 2 extra ports for steam to see the server. default is UDP+TCP 54297 TCP 64297 UDP 64298 UDP 64299