An Irishman, a Frenchman, and a German walk into a bar... Try rescue occupied Paris from the Nazis. Go on give it a try.
Gameplay consists of shooting, driving and racing, scaling buildings, disgusing yourself to infiltrate bases, and setting explosives/blowing things up. The main story is well told and interesting and takes you an a variety of interesting missions.
The Saboteur is a massive game. I can pretty much garuntee you will not be able to complete everything as there hundreds (thousands maybe) of events outside of the main story/missions. Point Form:
The Good: Great atmosphere, Great music, Great art design, Good voice acting, Good story, Likeable characters, Fun/varied gameplay, Tons of weapons and cars, Setting explosive is fun, Unlockable Perks/abilities, Lots to see and do.
The Okay: Occasional glitches/bugs but they rarely impact gameplay.
The Bad: Could have used a little more polish to smooth out occasionally jerky controls.