Since this seems to be a BSD problem, I just wanted to report this as a possible bug and see if anyone else has a rt3072 driver working successfully? It used to work as run0 interface , but recently it doesn't work at all with the latest snapshots. Here are the details:
https://forum.pfsense.org/index.php?topic=84481.0
https://forum.pfsense.org/index.php?topic=84481.0