I remember playing this game. It was kinda fun, but boring quickly. You start off fighting bugs, lots and lots of bugs. You can either choose 3 planes, or a tank that can fly or be a land fighter.
Not Gundam, it's a type of RPG that's FPS pretty much. You fly around in "Gears" as their called on Space Cowboy, ((Now known as Flysis.)) There are four types of Gears, A, B, M, and I. Each unique in their own way.