You can hardly play it with a mouse and keyboard. Either Get a joy stick or a xbox 360 controller to play it on the computer. It's pretty fun, I especially like the assistance off mode where you can perform crazy maneuvers in dog fighting like braking then do a quick turn to line up your shots. Tanks are fun to take out with the E.R.S. where it guides you up to the sky and leads you down 90 degrees so you cant miss in urban areas, It gives you a nice "Death From Above" feel to it. It's pretty unique how they made the maps with satellite images from GeoEye so it's like a exact replica of the actual areas.
I'm a Tom Clancy fan so I'll be sure to pick this one up.