Ok, I was tired of not being able to join people's game when I had my auto-update off because of lockout being lame. And so I tried to add lockout to my MainMenu, and it still wouldn't let me join their party because only I had the added map. So, I came up with this fix for it. When you look at the mainmenu, disregard the first lockout. As of right now, there is no way to remove it. You will always have to use the 2nd one if your AU is off. Now, this works joining a game too!
Anyways, to sum it up, you can host lockout and join lockout with your AU off.
Patch below.