While I was watching some screenshots on the website, I noticed that there was this picture:
http://www.brinkthegame.com/media/screenshots/?id=662

If you read the title of the picture, it says: Aquarium Resistance.
If you then look at the background, it seems as if they are fighting inside a sewer system.

Just by adding the name(aquarium) and the background (sewer-like) together, it would make sense that the Ark's sewer system is called "The aquarium" and will be a playable map.

I have 2 questions:

1) Do you guys think I'm right?
2) If I am, what would/could be the objective(s) for both sides in this map?

good find,
Im guessing its a resistance covert mission to either gain control of a security base from underground or plant a bomb and destroy it.

from what i heard in an interview the aquarium level is the first level of the game, where the resistance has taken an ark founder hostage and the security has to rescue him.

Honestly, I'm quite sure there are more than two (Container City, Airport) locations. "The Aquarium" will be just one of them.

by the looks of it, it looks like a map where the resistence may need to get water. Just a thought or you need to flood something. Just my thought though.

"Aquarium" is the first map of the game,where this whole conflict starts.

Oh well, there you have it. Does anyone have more information about this map?
And btw, how did you guys get the info?

can you guys link the interview? if possible

It simply looks like a sewer to me...