Since the introduction of tracking monster kill count as an alternative method for clearing Dynamis D for reforging relics, it seemed like a potentially good idea to consider adding a similar mechanism for HTMB.
Maybe have a running counter or key item that gets acquired for completion of VE, E, N, D, VD where the amount of the currency is scaled with the difficulty of the battefield; VE = 1, E = 2, N = 3, D = 4, VD = 5.
Then have an NPC provide a listing of drops for each battlefield and the ability to select a drop from each battlefield using the corresponding currency tallied from completing based on difficulty.
For example, if you do Shinryu 500 times on VE or 100 times on VD, you are then able to select a drop from the list to obtain from the NPC.
This would promote groups to work together more since all members would be progressing towards their goals, and it would also counteract fatigue that many players face in battlefields such as Lilith where you can go 500 runs without seeing your last drop to get 5/5.
Achieving VD completion 100 times should be able to be rewarded by progress instead of potentially obtaining nothing for your efforts and disheartening players to continue.
P.S. Thank you GM Laghegath for suggesting that I make this post on the forums.