Me and my friends started playing the baron returns. But what is the victory condition? it says when all bubbling vials are carried by heroes or is in OL play area then its over.

1. but what if some vials are in the heroes possession and some in OL possession, is it who has the most vials who wins? or is this considered a "draw"?

2. If lady eliza is defeated and all vials on the map and in the goblins possession are discarded, is it again the one with the most vials who wins?

This game really confuses me.

It's the first part of a 2 part encounter, there is no victory conditions, the vials give you an advantage in the second part, so the player with more vials has an advantage in the second half of the mission.