D3 takes the best of the first two, and takes the whole thing out of the mines onto plantetary surfaces. The new weapons rock, the graphics were way ahead of their time, and the sound effects are gripping.
The intro is the best part of the story, really amazing, but after that the story takes some odd turns, and it's really my only gripe with this game. You may also need a guide for this game, as some of the levels can become quite confusing towards the end of the game.
The multiplayer is great, possibly the game's greatest feature. With the included level builder, lots of great fan made content has been generated and played online.
Recommended to any gamer with interest in flight or shooter games.