He's everyone's favorite wall-hugging murderer and he's looking more handsome than ever. As most of you know, the Skulk is the default character class and main element of the alien fighting force. He is fast, able to hide and ambush and has a powerful melee attack. But with no ranged attacks and without a lot of health (although he's a bit tougher than in NS1), being effective as a Skulk is all about knowing when and how to attack and being skilled enough to get close to the target. Pervasive vent and ducts systems help him choose when and where to fight and also provide a quick escape.
As well as this, they have also posted a couple of preview videos to wet your appetite. Head over and check out the full release.