Descent: Freespace - the Great War (1998)

As a pilot in the Gallactic Terran Alliance (GTA), you've known the Vasudans as the enemy for a long time. But things are about to change. An unknown menace, with technology beyond both ours and Vasudans, are destroying both sides. And now, old enemies must unite to fight this common enemy, and the dissenters and traitors on both sides.

Descent: Freespace is a space dogfight simulator. The game features a vast amount of weapons, missiles and bombs, as well as large capships. It also has online multiplayer. Take fighters and bombers on attack, recon, escort, and sweep missions against enemy capships and fighters and bombers. Defend your own capships and other assets. Your rating and performance is noted after every mission, with suggestions (if applicable). You can call in reinforcements (if available), and your wingmen actually do fight intelligently, as there can be dozens of fighters flying about.