A great game and worth playing.
Basically the story takes place where the first one left off. Nathan Hale is back once again that's who you will be playing as. Hale is with a group of soldiers that are Sentinels then the story goes a few years and you find your self in the United States where the horrible Chimeran disease is going around. If you want to know more about this fantastic story than you'll have to play the game and find out you're self.
Just like the first one all those awesome weapons are back that you loved using to kill everything that got in your way. And there's even some new awesome weapons so try them all out when your playing through the game and see which one you like the best. You can only carry to at a time but it isn't a big deal you'll find weapons a lot to switch out and stuff.
The graphics of the game are nice the buildings and everything looks great so pay attention to all the detail. There more types of enemies this time around so it nice to be killing new things. Now the best thing about the game is the boss fights to me. Your fighting these huge things that just look hideous and none of them have weaknesses.
Overall Resistance 2 is a great addition to the first one so if you liked the first than you'll defiantly like the second.