How do I 3* Ships Hard 5-D with my collection?

HT, XB +1. XB will start with stealth, and will apply breach with basic to keep taunt up on HT. For your +1 you can either use someone fast enough to go before it dies (ITF, using its special on its first turn to gain foresight) or someone tanky enough to survive until HT gets taunt up. Then reinforce your two biggest damage dealers (Vader +1) to clear out the enemy fleet. Use Thrawn (or Tarkin if your Chimaera is no good) as your commander, spam those buffs. Another alternate method is use Slave 1 as your third in your starting lineup. If it survives, spam proton bomb to hit through all that protection up. Kylo’s Command shuttle as a reinforcement will help you get more proton bombs off.