Conquerable Halls do exist in C4 client.
Some where introduced in the game since C2 http://legacy.lineage2.com/news/chronicle2_10.html
Its a pain, I know... but it's a cool feature.
Some where introduced in the game since C2 http://legacy.lineage2.com/news/chronicle2_10.html
Its a pain, I know... but it's a cool feature.