This trailer reveals the Skulk, one of the playable alien classes found in Natural Selection 2. The video consists of concept art and animations, we get a sense that the Skulk will be for players that prefer speed and agility. Skulks can climb along walls and have vicious melee attacks, but don't have any ranged attacks nor a lot of hit points. So, it looks like if you need an alien assassin class, you'll be choosing a Skulk.
Download HD Natural Selection 'Skulk' Reveal Trailer (16 MB)
Check out all Natural Selection 2 downloads