Metacritic: Halo: ODST ( Updated )

[MAFKKA]

I dont know about the letter convertion but since there is 6 letters (A-F), the convertion should be 100/5 (since A cant be counted due to it being 100) = 20 point drop for every letter.

A - 100
B - 80
C - 60
D - 40
E - 20
F - 0

So a C- should be at 50.