Chaser

The shooting is mediocre to bland, but it works and the story is just telling enough that you are interested in knowing what reason is given to you next

It's quite long for an FPS and some of the levels suffer from bad pacing more than others. Personally I liked one of those levels on Mars later on, simply because it seemed to make sense in the context and because it seemed kind of interesting to have an FPS-level be that huge and having a good amount of down-time. Some of the other ones - especially the underwater-level - should have been shortened.

The soundtrack is good and even though the levels generally don't feel like they are telling any kind of story, lighting and scale often helped to make them more enjoyable. The gameplay is often deadly, but only rarely got unreasonable in that respect (though there was that stupid turret-section right before the end...).

So in this game you shoot people. Whole bunch of them. It has good start on a space station, you kind of feel it will gonna be Half-Life in space. Or something else in space. And after that you just shooting same old regular people back on earth. And suddenly story leads you in slavery to some mafia dudes right after you was warned about it. You have no control, you have to shoot more boring shooting. And after that I was out of the game.

Not excellent, not terrible. Good one. Worth a try.