One Turret, Any Ammo. (bullets, flamethrowers, rockets, cannons, railguns, shotguns, capsules/grenades)
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Even if you are using remote view, and the actual player character is on an entirely different surface, changing the type of the turret while it still has ammo in it will teleport the old ammo type across the solar system into your inventory.
