Aliens vs Predator
Nice but stupid AI on the marines really destroy the game. It's no fun to stalk the humans as a alien when they are to stupid to even notice that someone dies right in front of them. Then when you play as human you have to suffer with them repeating the same stupid line of dialogue the whole game. The three way story do not really work that well also, minor point really but when you play the whole games it would be nice for it to be good.