Hey @ew-and-patterns, here @lizanomadsoul from HiveBuzz team 🙂
As far as I know at hiveblocks there is no description about the marine character levels on Hive. The levels displayed therefore are calculated with numbers HiveBuzz defined for them.
We did change MVESTS to VESTS in order to avoid confusion as appearently plattforms use different measures to define M in MVESTS (Million, Mega etc.).
I hope this answers your question 🙂