This is probably the best first person shooter I have ever played. Being in the military I have a first hand knowledge of how realistic tactics work. I was very impressed with how smart the marines were and how they fought, they fought like a real soldier would.
Also I love the futuristic feel of this game. It gives you the power to explore technology and ideas that have not yet occurred. The suit is sweet, all the aliens are tough to kill.
This game is incredible because its not only action but strategy as well. It's like Metal Gear Solid and Call of Duty mixed together with a futuristic story line. You have to use stealth and plot your moves because if you go guns blazing then you will die, simple as that.
The one thing I didn't like is how many bullets it takes to kill stuff. I was using nearly a whole clip per marine and that seemed crazy even if they are wearing futuristic armor. Thanks for dropping in, enjoy...