Ah, so there is an "x"-number of BF keys (5?) in each Act and each of the "x" keys opens a different dungeon? Hmm, looks as though I'm not as far along as I thought.
3 dungeons in the fisrt act.
progressively more per act.
example - in act 2 you can get a key early on which says `battlefield 1 is now unlocked` has been unlocked` its unlocked dungeon 1 in the Act2 battlefield.
Later you get one which says `You can now use level 5 battlefield` that means 5 of the Act2 battlefield dungeons are open.
