Star Wars X-Wing (2nd Ed): HMP Droid Gunship Expansion Pack - Rules of Play says:

The HMP Droid Gunship Expansion Pack unlocks new possibilities with a beautifully detailed HMP Droid Gunship miniature and six ship cards with their own programming and protocols for battle. Your droid gunship can be further modified to your exact specifications with eight upgrade cards, or you can follow the recommendations of three quick build cards to get your gunship into battle as quickly as possible.