Use all the undead you have available. Make deals with friends or Armada members to unclan, fight each other, clan up again. At least the battle goal is achievable. To go the do 7,500 adventures one, it would take every member of my armada buying at more than 10 refills. That's not going to happen when the maximum reward is only about half that
If that's what is takes. Generally people that do the unmobbing and fighting bit do it with several different players at different levels and abilities so that they each can get fight wind. It would help if defensive wins when attacked counted in these quests but it doest seem Kano interested in making this change.
They actually need to Lower the Fights in the Quest by 5% cause that is alittle too OP on what they have it set on cause not everyone can't do this due to not having a Full Syndicate, Armada, Factions an Guild so this needs to be really updated an adjusted