» Wed Jun 16, 2010 8:52 am
I see your point, but you're seeing it in the wrong way. Let me clarify.
You can play any combat role with any class, you can easily switch during matches, as seen in the videos. To complete both campaigns, you have to play +- 10 hours, but you won't be level 20 by then. You can only get a fixed amount of abilities for each character, so you will have to make more than one character to see everything. However, all basic abilities will be available anyway for any class on any character.
When you reach level 20 and keep playing with that character, you will keep gaining XP points, which you can use to level up new characters without even playing with them.
I suggest you read this: http://www.gamesas.com/index.php?/topic/1154126-unofficial-brink-faq/page__pid__16913615#entry16913615