This one, really gigantic and you can easily get lost in this. If you played Command and Conquer when you're storming multiple bases until you reach the main enemy base through endless caverns and hallways then this is how it is. However the flags are mounted on top of the towers while the flag bases are right at the entrances.
Idk why the author did that, cause at first i thought this map didn't had flags at all lol.

In terms of design is really well made and great arhitecture, but i won't recommend this map to less than 5 players.