Rank B marks:
Change to 15 min spawn
Keep Allied marks at 5 per kill
Change myth reward to 5
change soldiery reward to 1
Rank A marks:
Change to 1 hour spawn
increase HP
Reduce Allied seals to 10
Reduce Myth reward to 20
Reduce Soldiery reward to 5
Rank S marks:
keep spawn methods, make spawnable every 3 hours after death. (or spawn every 3 hours if no method applies)
Increase HP
keep Allied seals at 50
reduce Myth to 100
reduce Soldiery to 20
Reasons:
With the ability to teleport instantly across the world dozens of hunters are able to descend upon and promptly kill very weak NMs that has a unreasonably long spawn times.
Hunting B marks are supposed to be for the casual solo hunter. Right now there are multiple LS's of eager hunters scouring the landscape, announcing the position and immediately killing a very low class mark nearly instantly. The reward for these hunts are too great for the effort given. Reducing the rewards and upping the spawn time will give greater opportunity for those solo hunters, and lessen the desire of large group hunting.
Rank A marks should be a souped-up FATE bosses. Formidable foes that have a lot of HP and take at least a full party to handle. These should be the targets hunting Linkshells are after. A battle that should last in the range of 10-12 minutes for a single full party to kill. Deaths are likely.
Rank S hunts should be on the order of FATE mega bosses like Cancer, Svara or Gorgimera. Something that takes multiple parties to handle, that has a ton of HP, and should take 15+ minutes to kill with multiple parties. Multiple deaths are to be expected.