Nightwalkers have evolved from Vampires and are multiplying at an alarming rate. Unknown to all but a few, their population will soon surpass humans. As a member of a black ops elimination squad, you must use stealth, strategic thinking and advanced weaponry to take out the Elite Nightwalker leaders before they overtake human kind. Luckily it's raining heavily, which dampens the Nightwalkers' senses to give you a fighting chance!