Portuguese fixes

Some Portuguese fixes thanks to rakowozz.
Among other things, something that may be applicable to other languages:
"(...) since these are proper nouns or, even better, descriptive names, it's acceptable to have the "de" preposition omitted. It then gives it the same meaning as "HEMTT Transport", opposed to "Transport HEMTT".
http://forums.bistudio.com/showthread.php?178253-Authentic-Gameplay-Modification&p=2766216&viewfull=1#post2766216