Maybe I never knew how things worked; maybe I am misremembering.
I normally play the main CP campaign (Alliance Locked Grayhost). That is my selected "Home" campaign. However, the user interface (UI) provides the option to "Enter" other Cyrodiil campaigns without first changing "Home" campaigns. In other words, it seems that leveled-characters may enter campaigns as "Visitors."
This week, for the double-AP event, I started a new character and have been playing the under-level-50 campaign "Icereach." I am not getting the "Enter" prompt at the bottom right of the screen that normally allows entry into other campaigns. In other words, it seems that if one is under level 50, one may only enter a campaign after selecting that campaign as "Home"? No "Visitors" allowed?
Is there a way for an under-level-50 character to enter a Cyrodiil campaign as a "Visitor"? Without changing the "Home" campaign? You see there is a certain faction that turns the entire map a single color, and then gate-camps, thereby putting an end to PvP (during the double-AP event!) for hours and hours and hours. I wanted to swap to another campaign where I might actually play PvP, but it seems that is not possible. Am I missing something?