For anyone that wants to share where they are with Mastery Rank and there stats on quest/missions/roe and so forth. Rank can be found in menu under Status>Profile.
Any data helps, but more data for people at rank 6 can help us find possible base requirements. Stats from other ranks also can find baselines for those as well. Obviously stats from people if they notice when they rank up will be extra useful.
Square Enix said:
Mastery Rank is a numerical value representative your completion of missions, quest, and various other types on in-game content. The higher the rank, the more you have completed.
Source
The "other types of in-game content" might be hardest to figure out.
Apparently at the moment Rank 6 is the cap?
Master Rank 4 with:
Rank 10 only in one city
Zilart/CoP main missions + epilogues completed
ToA/WotG/SoA/RoV main missions completed
No Addons done
451 ROE completed
Max Fame in Bastok, Windy, Sandy, Norg, Jeuno and corresponding linked areas
Relic/Empyrean/Aeonic completed, no mythics
