I’ve been playing heavily with fighters for the past few weeks, and come to the conclusion that the Rebel Atlantis Bomber is a problem. It may not threaten the entire game, but it certainly threatens every other fighter hull. Here’s why: you can strap a minimal generator, three tiny engines, and a laser cannon to the Atlantis hull. At ~100 cost per fighter, you get a fighter that flies at 3.25 and will murder any fleet not packing tons and tons of armored tractor beams (3.25 is too fast for almost anything to track these fighters - without tractor beams, I’ve used these fighters alone to kill many entire fleets with no losses). Now, tractor beams can counter these fighters in enough quantity (and if mounted on heavily armored platforms that don’t die quickly to the swarm), but this hull makes every other fighter type in the game look pathetic in comparison. I simply can’t see any reason to pay for any cheaper fighter considering the drop in effectiveness and the fact that deploying fighters is usually an issue of pilots, not credits.
A reduction in slots is the simplest solution. Having a fighter with additional slots makes it unique and interesting, but also far superior due to the degree to which speed matters for fighters. A more complex solution would mean tweaking how tracking works so that these little monsters aren’t nigh-invulnerable.