Pulled this from the "Letter from the Producer"

"Which reminds me, I know a lot of players have been concerned this will be like back in the day, where one player or party would claim an enemy, and lock everyone else out from getting a reward. You'll be happy to know that the Hunt was not designed with any such claiming system in mind. In fact, some of the elite marks are so powerful, it would be in your best interest to shout for help before trying to lay a hand on them."

Then I lol'd at it. Make them harder SE.