Have you ever found yourself playing GTA5 and thought to yourself, "You know what would make this better? An Arwing!" Well, I have some good news. A fully flyable Arwing mod for Grand Theft Auto 5 is available. In addition to flight, it can shoot two different kinds of weapons.
If you want to play something a bit more relaxing, you can fly the Great Fox mod for GTA5. It moves a bit slower and has no weapons (that I know of anyway).
Both mods were made by KAFAROS, who frequently makes custom mods for GTA5. Maybe you can convince him to put Krystal in the game, for the right price. Both videos by LemonadeGamingHD.