The datapack adds the ability to build and launch rockets with different modules into orbit for satellite assembly. Once it's ready, you can call various stratagems (inspired by Helldivers): turret deployment, orbital bombardment, napalm strike, etc.
Recipes for all items will be available in the Recipe Book.
Put downloaded datapack archive into:
.minecraft → saves → "name of your world" → datapacks
Put downloaded resourcepack archive into:
.minecraft → resourcepacks
Enable the resource pack in the settings.
Type /reload when in the game.