Pretty straightforward and fun PS2-era FPS. Interesting story and setting, if you're not a history buff you may want to read the Wikipedia article to figure out what's going on since the game does little to help you in that regard. It's not perfect - it feels really floaty with no head bob and no footsteps, the controls for changing weapons is awful requiring you to scroll through your entire arsenal (you'll end up just using the assault rifle and sniper 90% of the time), it's pretty short, and the final boss sucks. Can't go wrong with paying less than $2 for this on sale, though.