So here's idea for another PvP activity:
Every Saturday or Sunday there would be zone appearing near Redding or Broken Hills. Time of appearance would be rather random (Saturday OR Sunday between 21-23 server time). Those areas would be something like private mines, but you would have to fight for them.
Whenever that zone appears, there would be global info and 1h timer. When the timer ends, the group being in the capture zone gets private mine for a week.
After capturing, the Private Mine would be visible only for faction, who captured it.
That's not all:
After you capture the zone, you need to pay 50k to be able to have slaves in that mine (for exampe you would have to pay some guards who wouldn't let the slaves run away)
That would require deleting Private Mines (as they are now) from the game.
I think that guarded mines should also be deleted from the game, and the only source of materials should be unguarded mines (Gecko mines) or random encounters (small amounts of materials, doesn't respawn)