Halo 4 English Language option outside USA

Hello i recently moved to Brazil and i bought Halo 4 and to my depressing surprise the language is in Portuguese with English Subtitles and i was wandering I don’t know if there was a way to release a English option in the game through update cause having it dubbed over in Portuguese really ruins the full experience plus ordering it on Amazon is like 300 more out of my pocket due to import tax… So yeah i was wandering if that is possible and anyone else who wish to leave your comments and reply …Peace…