My girlfriend and I are trying to play together and we cannot, we can play missions seperately at the same time with no issues, we can even join a strike team together in the MS. However if we try to play a mission together one of us gets into the map and the other gets an error code 2007, 4003 and maybe a couple others. I have tried using a VPN, turning off the UPNP on the router and computers and nothing works. FUnny thing is, we playerd the closed beta without any problems. Then we bought the game to play the pre-order beta and haven’t been able to play together since.