Subspace Striker

You are the commander of the giant spaceship "Swordfish" sent to disrupt federation spacelanes, cutting off their arms supply. Your job is to hunt down freighters, cruisers, sweepers, and carriers while in subspace, while only surfacing in realspace to shoot down these enemy warships. The Swordfish is equipped with ten torpedoes to do this. Fail to deal with the warships at the right time, and you must dive back into subspace to avoid being taken out. The game ends when you killed all the warships or you are taken out