For a shooter on the DS it is fun but just not long enough. Still worth it if your looking for something on the DS.
The story behind the game is strong and immersive which is needed in military shooters. Put on a good set of headphones and the gun fire is near perfect with action happening all around you, you almost forget how pixelated the enemies are. But the graphics ain't the only flaw. The game is just SO SHORT. I found myself playing it on all the difficulties just to feel I got my money's worth.
But in saying that the gameplay is awesome. There are the shoot the enemies, get to the extraction levels but then your on a trucks mounted machine gun then in a jet fighter launching missiles down below. The changing of the game just makes it so much fun.
If you are looking for a game on your DS and you see this... Pick it up. Just maybe not at full price. 20% off and its easily worth it.