I haven't used the TIE bomber very often, but I'm giving it a chance. I plan to try this list.
Darth Vader - swarm tactics, concussion missiles.
Scimitar TIE bomber - seismic charges, proton torpedoes.
Howlrunner - determination.
Academy Pilot TIE fighter x2
Total 100.
How's this look? If I remove Howlrunner's determination, I could replace the proton torpedoes with assault missiles.
Again, I haven't tried this list yet, so feedback is useful. I only have one bomber, so don't suggest adding more. I think this thread has pretty much covered that.