This game is OLD. But playing it on the Xbox 360 is FUN. There's so much to look for, new guns, collectibles, ammo crates. And the campaign is fun as hell, and I'm not completely finished with it but the story is fun, and there's a lot of twist that you don't expect. The games great, and I need a remake it in my life. (Spoilers) I remember the mission where your getting stormed after crashing the plane. And I'm getting shot from everywhere, the walls of my house are breaking, there's bullets everywhere. (Spoilers done)That was super fun, some of the maps are really big, so you can pick and choose how you complete the mission. You can sit back and snipe with your .50 cal, or you can run n' gun with your m60. The character development is great. (Some spoilers) From the Hippie pacifist pilot, to the cowboy, everybody has good dialogue and everybody makes cool actions.
Should you buy it? Yes you should.