Aliens vs. Predator 2 has shaken the multiplayer gaming community since it's release in 2001.  Aliens vs. Predator, the first of the title, was an awesome game, yet it lacked in the features AvP2 has bestowed upon us.  Aliens vs. Predator comes from two of the most kickass movies ever created.  Alien, Aliens, Alien 3, and Alien Ressurection all had people shitting in thier pants when they had first seen them.  The Aliens are creepy and move faster than hell.  The second part comes from the Predator and Predator 2 movies.  The Predator is a stealthy character that looks like hell itself and packs the punch of a bull.  Aliens vs. Predator - The Movie was released a few years after AvP2 had come out, and with newer technology we really got some close up action on the Aliens and Predators.
      Hopefully someone decides it's time to make AvP3 soon, with AvP2's multiplayer community dwindling, we may have to find a new game altogether to kick some ass in.