Those type of maps wouldn't be whitelisted tho, unless you play them on servers that saves its stats on the server itself.

Then its time to rethink 350 and 500 lvl achievements, its a lot, or rethink exp requirements after 100 lvl since its not giving you any points, or rethink how you get exp, or more zombies, endless mode.
Decisions, decisions.

Good thing that only certain maps are getting whitelisted. Maps should fun, fair and less about exp grind. I believe that the devs plan to rewards high lvl players at some point with more cool stuff besides the gatling gun :)