Pretty good game, except the ending was... pretty lame. The final boss fight is pretty kickass, though, and shows you the amazing real-time physics in PDZ. Anywho, this game is definitely not another Halo, but it's definitely one to purchase, play and complete. I'll probably go through it again, also, since you unlock weapons as you go.

Geez Cdemon you already finished it? I'm just poke'n along I guess.

It is a very good game, I think it calls for a little more skill than some FPS games cause that darn cross-hair aiming is damn touchy on some of the guns.

I did it in around 7 hours. You guys must be playing on something above agent.

Yeah it can easily be beaten in a day, maybe not one sitting but definetly a day.

I finished it a couple of days ago. I am trying to get the rest of the Achievements now.

I have done mission 0 and mission 13 on Perfect Agent, but I think that is about as far as I can go. I might get more done on Co-op Perfect Agent.

how many missions are there?

There are 14, but mission 0 is a training mission.