There are plenty of online shooters. You can name nearly any title that is out there and it will have some sort of multiplayer aspect that was tacked on for no reason other than to provide that option to players. Sometimes this addition only ends up hurting the game as a whole but Brink certainly won’t suffer in these regards.
In the newest trailer from Brink we see plenty of footage that shows some of the abilities that players will be able to unlock as they play consistently with one class of character and level them up over time. Of course there is also a rather extensive character customization mode that will hopefully allow you to become a unique looking fighter on the battlefield when the title releases for the Xbox 360, PlayStation 3 and PC on May 17th in the US and May 20th in Europe.