This is a game that clearly has not aged well, unlike some games from its era. The graphics are decent, for the time period, but that's about it. You'd exepct a game that's essentially a six degrees of freedom shooter to have appropriate controls, but the controls are more like a FPS, which does not mesh well with what's going on.
The story is... Confusing to say the least. I was able to determine that, after a terrible nuclear war, humanity began living underwater. Beyond that, I'm not sure what's going on. The audio balancing on the cutscenes is so bad I could barely make out the voices past the music. The conversations are so seemingly random, with the plot simple jumping in several points without warning.
Perhaps the game's worst offense, and it's one that's seen a lot in games of this era, is the terrible escort/protect the objective missions. The game throws so many enemies/turrets at you at once and your allies will blindly follow their programmed path that protecting them, or an objective, is so incredibly difficult that it's hard not to just skip levels. Even playing on Easy, which was proving overall unchallenging, I failed each and every protect/escort mission several times.
The idea is great, the world is interesting, but the game itself is more of an excerise in patience.