Quadrant M4

The Milky Way has fallen under the iron fist of galactic empires. In Quadrant M4, the final bastion of humanity, you are the last hope. Implanted cybernetics control the masses, but you have resisted assimilation. Now, you have infiltrated the enemy's exposed forward research facility. Your mission: commandeer the Sar-On BattleStar prototype and sever their supply lines. Engage in intense space combat across two dozen star systems. Disable the crucial warp gates to trap the Sarkad and Onton fleets in Andromeda, turning the tide of their expansionist war. But time is running out!
summary by MetaCritic