I don't know if this has been suggested or not, but why not have a way to distinguish who has the alter in certain maps.
Such as Broken Tower, Courtyard, and Hall of Heroes.
Sometimes the battles become pretty involved, so you might miss a capture or you didn't even know someone captured at all.
It could be something simple, like the color of the team.
For example, blue has captured the alter. A small text with the word Alter and next to it the color blue.
If no one has the alter then it's blank until someone captures it.
Alter: "Blue". That way we know who has the alter and who doesn't.
Just a suggestion I thought I'd throw it out there.
L

