Symmetry is amazing because I can take an old mesh, or a mesh that is otherwise terrible, and make something awesome out of it.
Remember the Purgatory? Here, let me jog your memory.
I need Undead ships, but I'm kind of a dumbshit. I don't know how to model Organics or anything, and I really need to expand my knowledge. That's tough business with mental disabilities that cripple your ability to process information properly. In the mean time, when I panic, I apply tons and tons of Symmetry modifiers and hope something neat comes out.
The Purgatory is from Armageddon Onslaught, an entirely unrelated universe. Unless I decided to put in the UD Myrookk fleet, it has no place in this world. Undead don't use turrets for their weapons - all of the spikes are guns that use something called Spire Focus, a way of psionically generating and controlling various forms of energy. The Purgatory is pointy like Undead ships, but it's too "mechanical" and has mounts for guns. I needed a way to make a Purgatory that fit my demands for a new UD ship.
Enter Symmetry.
Symmetry won't be the end answer - this ship still needs a ton of work to become a true Undead-canon design. But it helps set the stage for something entirely new that I could never make by hand.
A massive string of Symmetry'd ships that came from the UD Alrashann. From one of these meshes came the Wormwood, which I showed in earlier threads and in Episode 0. Symmetry has saved many of my meshes from horrible fates, and is great for general editing. Cut off half the ship, use Symmetry to mirror the other half, and you have a seamless mirror of what you edit on the one half.
Anahn Sonsora Battleship
This is model comprised of two meshes I had scrapped previously. The rear is a significantly edited mesh I originally made in Maya in 2007. This is what the original looked like -
I hacked off the front half and used another mesh from a failed attempt at a new Anahn destroyer from a week or so ago. I taped them together with Bridge and went from there. It's still a long way from being finished, but it has a strong start.