So after 50 levels of questing I'm wanting to do some pvp for awhile.

Questions:
I join a 7 day resources campaign solo and get transported to Cyrodiil. I see lines showing where I can use the Transitus shrines to, but I just don't know where to go.

I teleported to as far as I could go, but I don't think that was needed because you really can't just wipe another faction completely out of the game, so raiding their home base was a suicide mission, right?

So l went back to a safe spot, then scrolled around on the map and saw the small resource icons that (even though they were my factions color) were not claimed by a guild. So I went there and claimed them.

I saw that there are scrolls in our factions possession and have seen the messages when I was questing saying that a faction had lost a scroll & a faction had gained a scroll. What does that mean to me in game?

How do I find the front lines of the battle where the action is when I join solo?
I was invited once to join a group for pvp and it was easy. I just followed everyone else, and then fought the other players.

I really enjoyed our run that day and like I said, I'm wanting to get back into it.

Thanks.