Names of the four tiers

I like Heroic, Paragon and Epic too, but this is missing a fourth one. Maybe a "Veteran" between Hero and Paragon or <Adventurer, Hero, Paragon, Epic>
Apprentice is very clearly the first Tier. So, maybe Apprentice, Journeyman, Master, Retired? ;)
OK, Apprentice, then Hero, etc...

Definitely a possibility. I was trying to figure out how to get Murder Hobo in there!!
Wouldn't the highest tier after Murder Hobo be, like Bond Villain or something?