I really love this idea. Thank you for this.
Below are some suggestions that came up when talking to my community that could have improved this experience. 
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With having shorter maps, making the difficulty a bit more challenging, especially with the final boss.
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Increasing the cap for the Super Boos chests. Having two maps that reset for the last 5 days of the event created more opportunity to receive
loot. Increasing the reward cap would have definitely made the end game more exciting. -
Giving more advance notice for things like this. Beastlands was already an unusual event with the Loyalty Skin chests and having the extra chests definitely helped many players have better opportunity to earn all the skins, but giving the community, and more so captains advance notice, gives us more time to plan for these things and opportunity to promote and integrate this into our schedules, and give viewers time to prepare and properly earn loyalty with their favoured captains to ensure the best payoff for the final days of the event.
