Writeup on the new Borderlands class Zer0 the Assassin: http://xbox360.ign.com/articles/121/1219459p1.html

*snip from the article*

"Like the rest of Borderlands 2's classes, the Assassin's skill set can be tailored to your preferred play style. Want to concentrate on close-up strikes? Long-distance sniper shots? You can with the Assassin, which according to Gearbox is the only class with a clearly defined weapons preference. If you really like sniping, it sounds like the Assassin could be a good choice."