User blog comment:Deathmanstratos/Ghosts ‘Global MULTIPLAYER REVEAL’ on August 14th!/@comment-64.135.223.194-20130807190639/@comment-25496444-20130807213023

MW2 and MW3 are most likely 18+/M because of No Russian and Davis Family Vacation, the raters tend to dislike civilians and children dying by terrorist attacks like that. CoD4 is 16+ at least by PEGI, but if it's M by ESRB then I don't know why.