So, I am really new to Forge... Never played halo because I dont own an Xbox. How do I play with other players in forge?
I'm not too familiar with the PC version, but you'll have to add some friends who also have the game with the xbox app that Windows has. When you do, just navigate your friends list and there should be a button that says "Send Invite" or something along those lines. There should be a button in-game (main menu, or the forge lobby) to view your friends list too. EDIT: Lol, or follow Goat's advice. That works too. You beat me Goat.
You can add all the people that have posted in this thread as friends. You should also post your gamertag in there, so other PC players that see it can add you.