Confronter is a little indie FPS developed, of all places, out of Pune, India. Using the Torque engine, it offers 3D graphics at a level of detail not often seen in indie projects, and reasonably smooth UI.
WASD to move, mouse look, left mouse button to fire, Q and R to cycle through weapons, space to jump, and hold E for binoculars. (One oddity is that you can apparently fire your weapon while using the binoculars -- the combination often allows you to take out enemies before you get too close.)
The gameplay is not highly polished -- my guess is that the developers viewed the game as mainly an art showcase -- and serious FPSers will find it pretty easy. But doing any kind of FPS on an indie budget is impressive, really, and it's entertaining enough. Single-player only, but then, the single player FPS is really an entirely different genre from the deathmatch game.
The story isn't even worth mentioning, except to note its absurdity. Just, you know, run and gun.