To help with your survival, be patient and work with your wingmen in the first phase of the mission.
Second, load up with non-aspect-seeking missiles such as Furies or Synaptic bombs. Ask your wingmen to cover you, they tend to do better against stealth fighters than you do.
Third, seek cover around capital ships. There should be a friendly cruiser or two as well as the Repulse and the drydock pylons. If you can't fight them offensively, then play defense. Shunt power from weapons to shields and engines.
If all else fails set the difficulty lower.