Ties can be extremely fragile. The slightly more expensive ties with offensive abilities (like Backstabber or Howlrunner) are pretty vulnerable to getting focused (both focus actioned and focus fired) and picked off early in the game.
What are your tricks and strategies for keeping Imperial pilots in the game?
Is attrition the name of the game for the Imperial squadron?
I have one thought: Expert Handling is great on anyone who can use the elite pilot upgrade cards because it shuts down target locks (and torpedoes). However most tie pilots can't get elite upgrades.