My friend and I are trying to play some Black ops 2 together on PC and neither of us can join the other. Our party privacy is open, our NAT type is moderate for both of us. I have port forwarded all of the ports, both of us have the game from steam and have the latest updates for both the game and Steam. We can Invite each other and can be in the same game as one another, but we can't join the some lobby pre-searching for match. Can anyone help us?