OOC: I'm gonna mention my random theory for what the letters M,N,H,R,S,N,N could be again. I thought they might of been from the park map of World Showcase, with each letter being from a different word.
Mexico
Norway
cHina
geRmany
Showcase plaza
americaN adveNture
japaN (if the 'n' in 'adventure' doesn't count)
The only flaw in the theory is that there's no S in any of the countries (which is why I used the Showcase Plaza), and it skips out Italy which is between Germany and the American Showcase.