The final entry in Bethesda's Get SMART series of Brink training videos explains how to navigate the battlefield, dealing with turrets and mines, and how operatives can disguise themselves as enemy players. Sneaky!
This game looks like some kind of hybrid of Killzone 3 with Borderlands visuals, but with even more emphasis on cooperation. I doubt most gamers will show the level cooperation needed to win games and will just want kill people and boost their K/D ratio. I hope I'm wrong, but I've played enough of Killzone 3 to know that people will prefer to stick to the killing machine class (Marksman), even though a hidden sniper doesn't help much planting bombs.