Tie bombers are just weak versions of b-wings. If not attacked laser-based capital ships or fighters, then of course...they have torpedos...they can do some heavy damage. But never use them against fighters. Also...one of u mentioned whether or not to leave basic production facilities (like 1 shipyard) alone or to scrap it. I find that when i only have one or two shipyard on a planet i use it to build lots of fighters for that planet and the sector.